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SLU open for pickup + delivery -
Premium Ingredients
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private events @ the RUMPUS ROOM
Lunchbox South Lake
Lunchbox South Lake Union now open for Dine In Pickup and Delivery.
Click here for pickup and delivery options.
For Booking events, Catering, parties please call 425-295-9243 or 253-245-3501
OR send an email at rrevents@lunchboxlaboratory.com
Address: 1253 Thomas St, Seattle, WA
Phone: 206-621-1090
Hours:
- Open 9:30am to close Daily
- Open for Dine in, Pickup and Delivery
Download our Full Menu
Appetizer Experiments
Sweet & Spicy Fried Pickles
Served with Tapatio dipping sauce.
Bacon Brussels
Crispy Brussels tossed in bacon vinaigrette.
Cheese Curds
Breaded and deep fried Wisconsin cheddar cheese curds. Served with Tapatio dipping sauce.
Gavacho’s Totchos
Tots topped with cheesy sauce, crumbled bacon, green onions, sour cream and Satan’s Tears Ketchup.
Buffalo Chicken Roll Ups
Crispy fried egg rolls stuffed with pulled chicken breast, cream cheese, bleu cheese, green onions, and buffalo sauce reduction. Served with cool celery ranch.
Funyun Chicharrones
Hot and crackling pork rinds, tossed in our funyun seasoning blend. Served with buttermilk ranch.
Dogsticks
Three mini all-beef Hebrew National hot dogs fried in our sweet white corn batter. Served with Papa’s BBQ and Black Pepper Mustardaise.
Salad Experiments
Caesar*
Romaine hearts tossed in our Caesar dressing. Topped with fresh shaved Parmesan cheese and house made garlic rosemary croutons.
Add chicken breast for 4
Lab Chop Chop
Ribbon cut romaine, chicken, bacon, blue cheese crumbles, tomatoes, cucumbers, herbs tossed in buttermilk ranch.
Mac & Caesar
Build your Own!
Cheddar American Mac with your choice of one topping, served with our South Lake Caesar.
Toppings: Jalapeños, sour cream, bacon pieces, sautéed mushrooms, seasoned ground beef.
Additional Toppings: 1.29
Make it Mac Du Jour: 1.29
Burger Experiments
- All burgers served on organic buns with choice of fries or tots
- Double or triple up your patty for (4/6)
- Extra Bacon (2 extra pieces) for $2
- Premium Sides: sweet fries (+1), mac fries (+2) garlic fries or tots (+2), onion rings (+2), house or Caesar salad (+2), Brussels sprouts (+3), Cheddar mac (+3), mac du jour (+4), loaded mac du jour (+5), hot honey sweets (+3).
Homage to the Dick’s Deluxe*
American Kobe beef, American cheese, bacon, grilled onions and our Top Secret Burger Sauce.
Tear Jerker*
American Kobe beef, pepper jack, grilled onions and jalapeños, Satan’s Tears Ketchup and habanero mayo.
Cluck Norris
Chicken breast, Swiss, avocado, lettuce, tomato, onion and buttermilk ranch.
Faux Real
Beyond meatless patty, creamy Chao cheese, vegan Top Secret Burger Sauce, lettuce and tomato.
The Classic ‘MeriCAN*
American Kobe beef, American cheese, shredded lettuce, tomato, onion, pickle, bacon and Billion Island sauce.
Mack Daddy ‘MeriCAN*
Two all beef patties, Billion Island sauce, lettuce, tomato, American cheese, pickles, and onions on an organic bun.
James West*
American Kobe beef coated in cowboy steak rub, house made Guajillo Cream Cheese, bacon, Papa’s BBQ sauce and onion rings.
The Smoker*
American Kobe Beef, smoked Gouda, bacon, grilled onions and Smoker Sauce.
The CODFather
Corn flake panko crusted Alaskan cod, cheddar, bacon, mustard coleslaw, and Bread and Butter Pickle Tartar.
Shroom & Truffle Shuffle*
American Kobe beef, Swiss, grilled onions, sautéed crimini and oyster mushrooms, Black Garlic Truffle Mayo.
Bahn, James Bahn*
Dork (Duck + Pork), pickled carrots, cucumber, daikon, fresh cilantro and Sweet Chili Mayo.
Burger of the Gods*
American Kobe beef, crumbled bleu cheese, candied balsamic onions and Super Gorgonzola Spread.
Alibaba Burger
Choice of Halal 100% Grass fed Beef or Lamb on organic bun, Mama lil's
pepper, Fresh cucumber, lettuce, tomato, red onion, spice seasoning
with our own homemade Harisa aioli , Pickle spear
Fish n’ Fries
Fish n’ Fries
Corn flake crusted Alaskan cod, mustard slaw, bread and butter tarter.
3 pcs / 4 pcs
Build Your Own Burger*
Includes 1 topping and 1 sauce
Served with fries or tots
1. Choose Your Patty
- American Kobe Beef
- Beyond Vegan Patty (+1)
- Vegan Black Bean Patty
- Chicken Breast
- Dork (+2)
- Double Patty - (+4)
- Triple Patty - (+6)
2. Buns
- Organic Burger Bun
- Lettuce Wrap
- Udi's Gluten Free Bun
- Grilled Cheese Sandwich Buns
3. Sauces +.25
- Billion Island Sauce
- Buttermilk Ranch
- Satan’s Tears Ketchup
- Papa’s Homemade BBQ
- Top Secret Burger Sauce
- Honey Mustard
- Plain ol’ Mayo
- Black Garlic Truffle Mayo
- Sweet Chili Mayo
- Habanero Mayo
- Jalapeño Ranch
- Celery Ranch
- Tapatio Dipping Sauce
- Smoker Sauce
- Vegan Burger Sauce
4. Toppings + 1.00
- Lettuce, Tomato, Onion, Pickle
- Grilled Onions
- Balsamic Onions
- Jalapeños
- Mushrooms
- Avocado
- Fried Egg*
- Onion Rings
- Bahn Mi Veggies
- Cheese Curd (+1)
5. Cheese + 1.5
- Cheddar
- American
- Pepper Jack
- Swiss
- Blue Cheese
- Guajillo Cream Cheese
- Chao Cheese
- Super Gorgonzola Spread
- Smoked Gouda
6. Bacon
- 2 pcs (+2)
- 4 pcs (+3)
7. Premium Sides
- Sweet Fries (+1)
- Mac Fries (+2)
- Garlic Fries or Tots (+2)
- Onion Rings (+2)
- Hot Honey Sweets (+3)
- Salad (+2)
- Bacon Brussels (+3)
- Cheddar Mac (+3)
- Mac du Jour (+4)
- Loaded Mac (+5)
Kids’ Menu
*Sub Apple slices or tots for free. Kids meals include a small milk or soda. Ages 12 and under only.
Cheeseburger with Burger Sauce and Fries
Grilled Cheese and Fries
Corndogs and Fries
2 Piece Fish and Fries
Classic Mac & Cheese
Chicken Nuggets and Fries
Noodles and Butter
Shakes
Hand Spun with Snoqualmie ice cream
All Natural Shakes
Small 12oz
Large 16oz
- Straight-Up Vanilla
- Strawberry
- Nesquick Chocolate
- Nutella
- Banana Cream Pie
- Boston Cream Donut
- Oreo
- Orange Creamsicle
- Mint Chocolate Chip
- Reese’s Peanut Butter
Shake Add-ons
75¢ each
- Chocolate Ganache
- Custard
- Fudge
- Peanut Butter
- Caramel
- Graham Crackers
- Banana
- Marshmallow Cream
- Oreo Pieces
Spike Your Shake!
Spike your shake for $4 with Kahlua, Irish Cream, Malibu Coconut, Whipped Cream Vodka & More!
Boozie Shakes
Or keep it virgin
The Drunken Elvis
Vanilla ice cream, graham cracker, peanut butter, banana, with a test tube spike of Malibu Banana, Pinnacle Whipped Vodka and Irish Cream.
Caramel Macchiato
Vanilla ice cream, chocolate ganache, caramel sauce, coffee, with a test tube spike of caramel vodka, Irish Cream and Kahlua.
Cinnamon Toast Crunk
Vanilla ice cream and Cinnamon Toast Crunch cereal with a test tube spike of Sinfire Cinnamon Whiskey.
Lunchbox Cocktails
Hey! You’re an adult. Drink responsibly.
Too Skool 4 Kool
Vodka, rum, gin, triple sec, Kool Aid and fresh squeezed margarita mix.
Root Beer Barrels
Pearl Vanilla Vodka, Irish Cream and Barq’s root beer on the rocks.
LunchBox Lemon Drop
Pearl Citrus Vodka, fresh lemons, simple syrup and a splash of lemonade. Shaken, served with a Kool-Aid sugar rim.
Astronaut’s Manmosa
Pearl Orange Vodka, champagne and Tang on the rocks.
Tang-O-Rita
Sauza Gold Tequila, triple sec, fresh muddled limes, Tang and fresh squeezed margarita mix.
The Mule
Pearl Vodka, ginger beer and a splash of lime in a copper mule mug.
Draft Beers
Pfriem Pilsner (WA)
Mac & Jacks (WA)
Boundary Bay Brewery (WA)
Pyramid Hefeweizen (WA)
Fremont Brewing Co. (WA)
Black Raven Brewing Co. (WA)
Rotating IPA
Rotating Cider
Rotating Seasonal Brews
Rainier Tall Boy (16oz Can)
Wine
House Red
6/22
House White
6/22
Merf Cab Can
8
Merf Chard Can
8
Anew Rose Can
7
Beverages (non-alcoholic)
Mexi Coke
Coke, Diet Coke, Sprite, Barq’s Root Beer, Orange Soda, Ginger Ale
Iced Tea (bottomless)
Fresh Squeezed Lemonade
Strawberry Lemonade
Fresh Squeezed OJ
Arnold Palmer
Caffe Umbria Coffee
Rishi Organic Hot Teas
*Burgers and eggs may be cooked to order – consuming raw or under cooked meats may increase your risk for foodborne illness.
Happy Hour Menu
Download our Happy Hour Menu
Daily 3-6 & 9-Close. No substitution, 1 drink minimum.
#SNACKZ
Sweet & Spicy Fried Pickles
With Tapatio dipping sauce.
FLAMING HOT CHEETO MAC
‘Merican mac and cheese sauce, topped with Flaming Hot Cheetos.
BEYOND CHORIZO STUFFED AVOCADO
BEYOND meatless chorizo, avocado, street corn salad, radish cucumber salsa, sour cream drizzle, toasted pepitas.
TOTS POUTINE
Tots, Wisconsin cheese curds, beef gravy, herbs.
HOT HONEY ROSEMARY SWEET FRIES
Sweet fries coated in spicy honey, with fresh rosemary.
DORK TACOS (2)
DORK (duck + pork), wonton taco shell, sweet Thai chili sauce, pickled daikon and carrot, cilantro.
CHILI LIME SHISHITO PEPPERS
Fried shishito peppers, fresh lime, ancho chile rub, herb yogurt.
SMOKY CHEESY BROCCOLI
Smoked pepper rub, seared broccoli, cheesy sauce, garlic pepper chip crumble.
SALADS
Add chicken breast for 4.29.
BAD HOMBRE SALAD
Romaine lettuce, Chimichurri yogurt dressing, shredded Wisconsin cheese curds, tomato, black bean salsa, toasted pepitas.
CAESAR
Romaine, anchovy dressing, Parmesan, garlic crouton, orange slice.
LBL FAVES
Served with fries. Sub lettuce wrap or Gluten free bun.
BURGER 101
Brioche bun, beef patty, American cheese, lettuce, tomato, pickle, Billion Island Sauce.
Add bacon for 2 bucks.
JAMES WEST JUNIOR
Brioche bun, beef patty, bacon, Guajillo cream cheese, Papa’s BBQ, grilled onions.
Add jalapeños for a buck.
FRIJOLE CABEZA CALIENTE
Brioche bun, bean patty, Pepper Jack cheese, jalapeño ranch, radish cucumber salsa, lettuce, tomato.
Add avocado for 1.5
I'VE GOT SEOUL (I'M SUPER BAD)
Brioche bun, beef patty, gochujang aioli, bulgogi glaze, over easy egg, kimchi, lettuce.
Add bacon for 2 bucks.
LUNCHBOX CHICKEN LITTLES (2)
King’s Hawaiian rolls, LAB fried chicken, jalapeño ranch, pickles.
Shakes
Small Chocolate or Vanilla Shake
Cocktails
LUNCHBOX MARGARITA
Sauza gold tequila, triple sec, and fresh margarita mix served on the rocks with house made cilantro lime salt.
THE MULE
Vodka, lime juice, and ginger ale in a copper mug.
Booze
PEARL VODKA
SEAGRAM'S GIN
EZRA BROOKS BOURBON
SAUZA GOLD TEQUILA
CRUZAN LIGHT RUM
VINO
RED
WHITE
ROSE
BEER
$1 Off Draft Beer
Rainier Tall Boys 3.5
Beer & Wine
Brunch Menu
Catering Banquets
Event Space
Full Bar
Full Menu
Happy Hour
Outdoor Dining
Shake Lab
To Go Delivery
LET US HOST YOUR NEXT EVENT OR GATHERING. PARTY WITH US IN THE RUMPUS ROOM.
