Step 1

In a large skillet heat oil over medium heat. Cook onion for 5 minutes, then turn burner to medium-high heat. Add ground beef, garlic powder, and taco seasoning. Break up meat into smaller pieces using a spoon or spatula. Cook for 8 minutes or until meat is no longer pink. Remove from heat.

Step 2

Place tomatoes stem side down on cutting board. Slice from the bottom (which is now facing up) to make 6 tomato wedges, but do not cut all the way through tomatoes. You should be left with 6 tomato wedges all still attached at the stem side. Repeat for each tomato.

Step 3

Pry open the wedges and sprinkle some salt over each one to enhance the flavor. Fill tomatoes with lettuce, ground beef, cheese, and finally some yogurt or sour cream. Garnish with salsa, black olives, or other toppings as desired.