Beef with lettuce

1 cup canned pinto beans , drained and rinsed 1 lb lean ground beef 3 tablespoons smoky barbecue sauce 2 garlic cloves , minced 1/4 medium vidalia onion,[...]

1 tablespoon vegetable oil 1 onion, chopped 1 clove garlic, minced 4 tomatoes, chopped 2 cups chopped cooked roast beef 1 (8 ounce) jar prepared taco sauce 1[...]