Preheat your oven to 350 F and move the oven rack to the center.
Prepare a 13x9 casserole dish by spraying it with non-stick cooking spray.
Place the biscuits in a single layer in the prepared dish.
16 ounce large refridgerator biscuits
Press the biscuits into the pan, joining them together as a single unit. Make sure to press the dough halfway up the sides of the pan to create your crust.
Place the pan on a baking sheet and bake the dough for 12-15 minutes. Check every few minutes after 12. Your dough should be light brown, and the edges are just starting to color.
Remove from the oven and set aside, but leave the oven on.
While your biscuits are baking, combine your browned ground beef with taco seasoning and water. Cook according to the packet instructions.
2 pounds ground beef, 2 tablespoons taco seasoning, 1 cup water
Transfer your cooked taco meat to a bowl and set aside.
Wipe down the pan.
Combine the sour cream, mayonnaise, half of the cheddar cheese, and half of the onions in another bowl. Stir well and set aside.
½ cup sour cream, ½ cup mayonnaise, 8 ounces cheddar cheese, 1 medium onion
Saute the remaining onions and green peppers along with the diced tomatoes and green chilies in the taco meat pan until slightly tender.
1 medium onion, 1 medium red or green bell pepper, 15 oz diced tomatoes and green chilies
On the baked biscuit crust, layer the ingredients in the following order: taco meat, tomato slices, bell pepper, and onion mixture, Jalapeno peppers, sour cream mixture, and sprinkle with remaining shredded cheese
8 ounces cheddar cheese
Bake uncovered for 30-40 minutes or until the edges of the dough are browned, and the cheese is melted.