Crumble beef and sausage in a frying pan. Add onion and cook on high heat, stirring until meats are browned. Discard any fat; season with salt and liquid hot pepper seasoning to taste.
Spread beans in a shallow 10 x 15 dish/pan (or other similar oven proof dish with equivilalent area). Top evenly with meat. Sprinkle chilies over bean and meat mixture, cover evenly with cheese and drizzle with taco sauce.
Cover and chill if made ahead.
Bake, uncovered, in a 400 degree oven for 20 to 25 minutes or until very hot throughout.
Remove from oven and quickly garnish with some or all of the garnishes.