Mexican Impossible Pie

Name: Mexican Impossible Pie
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Cuisine: American, Mexican
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