In an oven-safe skillet over medium heat, cook the ground beef, onion, and bell pepper. Crumble the meat as it cooks. Once browned, drain any excess grease from the pan.
Add all remaining ingredients (except for cheese) and stir well to combine. Simmer over low heat for 10 minutes.
Turn off the heat. Top with the cheese. Press some of the cheese down into the meat. Place the skillet under the broiler for 3-5 minutes, until the cheese is melted and a little bubbly. Remove from heat and let cool.
Preheat the oven to 400 °F. Grease the cake pan.
Roll out the pie crusts to about half the thickness. Cut 6 pieces that will fit inside of each well of the cake pan. You will have to take the scraps and re-roll them to get enough pieces. Then cut 6 pieces that will fit as backs.
Press each front piece into the wells and make sure there are no bubbles between the pan and the dough. Fill each with sloppy joe mix. Fill them less if you don’t want any sauce bubbling out and more if you want more sauce bubbling out.
Put the backs on and press the dough together around the seams of each, so they don’t come apart while cooking.
Bake for 15-18 minutes, until the crusts are golden.