Mexican Impossible Pie

Name: Mexican Impossible Pie
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Cuisine: American
Ingredients: 1 lb. ground beef, lean or extra lean; 1 cup onions, diced; 1 envelope taco seasoning (I use Epicure as it is low sodium); 1 small can (4.5 oz.) diced green chilies; 1 cup cheddar cheese; 1 1/4 cups milk; 3/4 cup Bisquick, gluten free if needed; 3 eggs; 1/2 tsp. hot sauce, or to taste; Salt and pepper to taste