Step 1

Preheat the oven to 350 degrees F (175 degrees C) and lightly grease a 9x13-inch baking pan.

Step 2

Place and press biscuit dough into the bottom of the baking pan and halfway up the sides.

Step 3

Bake in the preheated oven until lightly browned, 15 to 20 minutes. Leave the oven on.

Step 4

Meanwhile, heat a nonstick skillet over medium-high heat and cook ground beef until browned and crumbly, about 5 minutes. Drain fat. Stir in taco seasoning and water. Bring to a boil, reduce heat, and simmer, stirring occasionally, for 5 minutes. Transfer cooked meat to a bowl and wipe out the skillet.

Step 5

Add onion and bell peppers to the same skillet and cook over medium heat until slightly tender, about 5 minutes.

Step 6

Combine sour cream, mayonnaise, 1/2 of the Cheddar cheese, and 1/2 of the onions in a bowl.

Step 7

Layer browned meat, tomatoes, pepper-onion mixture, jalapeno peppers, and sour cream mixture on top of the prebaked biscuit dough. Sprinkle with remaining Cheddar cheese.

Step 8

Bake uncovered in the preheated oven at 350 degrees F (175 degrees C) until cheese is lightly browned and bubble, 30 to 40 minutes.