Waterfront Resturaunt at OMSI
From pizzas to salads to healthy snacks, Theory offers seasonal menus using local and organic ingredients. Check out our wide range of tasty bites for kids and adults alike! When you visit, ask us about our vegan, vegetarian, and gluten-free options. We are always happy to make meals fit your dietary needs!
Theory Hours
Tues – Sun |11 am – 3 pm*
*Special Hours:
Mon, May 26 | 11 am – 3 pm
Menu
Market Grill
Grilled Chicken Breast Sandwich – $14.95
Crispy Chicken Sandwich – $14.95
OMSI Burger – $14.95
Chicken Strip Basket – $15.95
Sides
Sidwinder Fries, Onion Rings, Fried Green Beans
$3.50 add on  $6.50 share size
Add Cheese $150Â Â Vegan Cheese $1.50Â Â Add Bacon or Avocado $2.50
Gluten Free and Vegan Buns/Bread Available on Request
Sub Plant Based Patty
Childrens Menu
Kids Chicken Tender Basket – $9.95
Kids All-Beef Hot Dog – $9.95
Little Explorer Burger – $9.95
Add Cheese -$1.50
Kids Grilled Cheese – $9.95
Kids Mac N’ Cheese – $9.95
Add Bacon – $2.50
Sides
Sidewinder Fries, Onion Rings, Fried Green Beans
$3.50 add on    $6.50 share size
Add Cheese $1.50Â Â Add Bacon or Avocado $2.50
Gluten Free and Plant Based Options Available Upon Request
Stone Hearth Oven
Personal Pizza
Add an Extra Topping for $1.95, GF Crust Available, Vegan Cheese Too!
Classic – $12.95
Margherita – $12.95
Pepperoni – $12.95
Bianca – $14.95
Pollo Blanco – $14.95
Dynamite Duo – $14.95
GF and Vegan Options Available
Take Away
Artisan Salads
Classic Caesar Salad – $12.95
Classic Chicken Caesar Salad – $16.50
Asian Grilled Chicken Chopped Salad – $17.95
Plant Inspired Santa Fe Salad – $14.94
Classic Cobb Salad – $17.95
Bistro Sandwiches & Wraps
Croissant Club – $14.95
Ham Fromage – $12.95
Mediterranean Wrap – $14.95
Side Salads – $5.00 with a sandwich or $6.50 ala carte
House Pasta Salad  (VEGAN)
Small Caesar Salad
Potato Salad Russet
Field Trips
/Pre-order lunch for your field trip group. Sit down and sack lunch offerings available.
Plan an event at Theory
With waterfront views of the Portland skyline, Theory is the perfect location for your next dinner or evening reception.
Tasty and sustainable world-class fare provided by
