Step 1

Preheat oven to 350 degrees Fahrenheit. Grease a 9x13-inch baking pan with oil or cooking spray.

Step 2

In a large bowl, mix baking mix and 1 cup of water until combined. Spread into the bottom of the greased pan. Set aside.

Step 3

Cook beef in a large skillet over medium heat until brown. Add taco seasoning and ¼ cup of water and cook for 3 to 5 more minutes, stirring often. Spread evenly over the baking mix batter. Top with canned diced tomatoes.

Step 4

Cook green pepper and onion in a skillet over medium heat until the latter is translucent, about 5 minutes. Top mixture over diced tomatoes. Spoon canned diced chilies on top.

Step 5

In a bowl, combine sour cream, mayonnaise, and 1 cup of cheese until blended. Spoon over diced chilies. Sprinkle remaining cheese.

Step 6

Bake for 30 to 35 minutes or until cheese is melted. Let it sit for 5 minutes to set before slicing. Enjoy!