Step 1

Preheat oven to 350º F and lightly grease a 9x13-inch pan with non-stick spray.

Step 2

Place ground beef, onion and red bell pepper in a large pan or skillet over medium-high heat and cook until meat is browned and veggies are softened. Drain off grease and set aside.

Step 3

Stir in taco seasoning packet and salt and pepper, as needed.

Step 4

In a medium bowl, whisk together sour cream, mayonnaise, 1 cup cheddar cheese, green chiles and garlic powder.

Step 5

In a separate bowl, combine biscuit mix with 1 cup water (adding a little more water as needed) and mix together until a soft dough forms.

Step 6

Press dough into the bottom of greased baking dish, then place in oven and bake for 5-7 minutes, or until lightly golden.

Step 7

Remove baking dish from oven and spread beef mixture over biscuit layer, then top with layer of diced tomatoes.

Step 8

Top everything off by spreading sour cream mixture over tomatoes, then cover with remaining cheddar cheese.

Step 9

Return baking dish to oven and cook for 30 minutes, or until warmed through.

Step 10

Remove from oven, serve and enjoy.