Add beef and onion to skillet and cook until done.
Lower heat to simmer and mix in BBQ sauce, red pepper, sweet potato.
Cut the corn off the ear of corn and add that to the mix.
Mix Bisquick and milk in a bowl.
Drop a spoonful of dough into a muffin tin. Repeat until you've used all the dough.
Bake biscuits for about 2 minutes, then take out of oven and add a large spoonful of the meat mixture to each muffin tin on top of the biscuit dough. Press the spoon down making a little cup for the mix.
Sprinkle cheese on top and bake for another 8-10 minutes.