1 (1.25-ounce) packet taco seasoning
4 ounces sour cream
4 ounces mayonnaise
8 ounces Cheddar cheese, shredded and divided
1 yellow onion, chopped
2 cups Bisquick
1 cup of water
2 tomatoes, sliced
1 green bell pepper, chopped
1 (4-ounce) can sliced jalapeno peppers
Heat oven to 325. Brown ground beef and add taco seasoning and water, according to packet instructions; set aside. In a separate bowl, combine sour cream, mayonnaise, 4 ounces of cheddar cheese, and half of the onions; set aside. Stir Bisquick and water together to form soft dough. Pat dough on the bottom and one-half-inch up the sides of an 9 x 13 in. greased casserole dish. Saute remaining onions and bell peppers until slightly tender. On top of biscuit mix, evenly distribute ingredients in the following order: ground beef, tomato slices, green peppers, onions, jalapeno peppers, sour cream mixture and end with remaining shredded cheese. Bake for 30-40 minutes or until edges of dough are lightly browned.