Unfold pie crust and lay out flat. 

Sprinkle flour over the crusts.

Using a biscuit cutter, cut out 2 inch round circles to form tart crusts.

Put one circle into each mini muffin tin slot.

Prick with fork. 

Bake for 10-12 minutes at 450 degrees.

While these are baking, brown ground beef and bell peppers in a frying pan.

Drain and add sloppy joe sauce.

Heat through.

Spoon mixture into tarts.

Serve immediately.