Step 1

Preheat oven to 375 degrees.

Step 2

Slice each bell pepper into 6 vertical pieces, along the indention line. Set peppers aside.

Step 3

In a large mixing bowl combine meat, onion, salt, pepper, 1/3 cup ketchup, and mustard.

Step 4

Add meat mixture to boats. Place on a parchment-lined baking sheet and cook until meat is done, about 20 minutes.

Step 5

Remove boats from the oven, drizzle with remaining ketchup, then top each with 1/4 cheese slice, place back in the oven and bake just until cheese is melted, about 5 minutes.

Step 6

Remove boats and enjoy will hot!