Lettuce
Fresh, crispy & hand-leafed
In-N-Out Burger
Thornton, CO
111 E 136th Ave, Thornton, CO, 80023-923816 itemsUpdated March 1, 2026
Structured menu data
Ingredients
Onions
Freshly sliced or grilled
Spread
Our own recipe, unchanged since 1948
Toasted Buns
Freshly baked using old-fashioned, slow-rising sponge dough
Tomato
A slice from only the plumpest and juiciest
Two Beef Patties
100% american beef. no additives, fillers or preservatives
Two Cheese Slices
Our american cheese is the real thing
Menu
Beverages
Cheeseburger
Combo #2 - Cheeseburger
Double-Double®
Combo #1 - Double-Double
Food Quality
French Fries
Hamburger
Combo #3 - Hamburger