Big Fat Easy Yummy Burritos

1 lb lean beef
1/2 small onion, chopped
1 can black beans, drained
1 can corn, drained
20 oz (plus) bottle pace picante sauce
1/2 - 1 teaspoon garlic salt
graded monterey jack and cheddar cheese
6 really big flour tortillas

Brown hamburger and onion. Add garlic salt.
Remove from burner and add corn, beans, and pace. Mix well.
Lightly butter one side of tortilla and fill with beans mixture and add cheese.
Fold tightly, put into lightly greased 9"x13" baking dish.
Add cheese on top.
Bake at 350* for 20 minutes.