Step 1

Place lettuce in a large bowl.

Step 2

Bring a skillet sprayed with nonstick spray to medium-high heat. Add beef, onion, garlic powder, onion powder, salt, and pepper. Cook, stir, and crumble until beef is fully cooked and onion has softened, about 5 minutes.

Step 3

Remove skillet from heat, and add both types of cheese. Stir until thoroughly mixed and melted.

Step 4

Add beef mixture to the large bowl. Top with tomato and avocado.