Finely chop the onion and garlic.
Heat olive oil in a pan and sauté the onion and garlic.
Add ground beef or chicken breast and cook until done.
Add tomato sauce, boiled beans, chili powder, and red pepper powder; mix well.
Simmer the chili over low heat for 10 minutes.
Place the chili, shredded lettuce, and cheese on a tortilla.
Roll it up tightly to make the burrito.