01 -
Preheat oven to 400°F (200°C).
02 -
Brown ground beef with onion and garlic in a skillet. Drain excess fat.
03 -
Stir in ketchup, mustard, salt, and pepper. Let the mixture cool slightly.
04 -
Spread the beef mixture evenly into a greased pie dish and top with shredded cheddar cheese.
05 -
Whisk together milk, baking mix, and eggs until smooth. Pour over the beef and cheese.
06 -
Bake in the preheated oven for 25–30 minutes, or until the top is golden and set. Cool for 5–10 minutes before slicing.