Step 1

Preheat oven to 400°F. Spray an 8x8 casserole dish with non-stick cooking spray and set aside.

Step 2

Saute ground beef, onion, and bell pepper in a skillet over medium heat until the ground beef is browned and the onion is soft and translucent. Drain the excess fat/liquid.

Step 3

To the ground beef mixture, add garlic powder, yellow mustard, ketchup, brown sugar, and salt and pepper to taste, along with 1⁄2 cup water. Mix thoroughly.

Step 4

Bring the mixture to a boil, reduce heat and cover. Simmer for 10-15 minutes.

Step 5

Transfer cooked sloppy joe mixture to the prepared casserole dish.

Step 6

Whisk together cornbread mix, egg, and milk until combined. Spoon over the top of the sloppy joe mixture and carefully spread to cover the mixture.

Step 7

Bake for 15-20 minutes until the cornbread is golden brown.