Tasty Mexican Casserole Recipe

Adapted from AllRecipes.com. A few ingredients were changed in order to use up leftovers in my fridge.

Ingredients:
1 pound lean ground beef
2 cups salsa
1 (16 ounce) can chili beans, drained
3 cups tortilla chips, crushed
2 cups sour cream
1/2 cup chopped green onion
1/2 cup chopped fresh tomato
3 cups shredded Cheddar cheese
1 whole onion, diced
1/2 zucchini, diced
1 cup corn
Note: Onion,