Bake the sweet potatoes in the oven at 400 degrees for 30-45 minutes, until nice and soft.
Scoop out the flesh and mash, adding butter, salt and pepper.
In a large, oven proof skillet, sauté the onion and pepper.
Add the ground turkey and cook until browned.
Stir in the corn, beans, seasonings, and salsa.
Season with salt and pepper.
Spread the sweet potato mash over the meat/vege mix.
Sprinkle with cheese.
Bake in 350 degree oven for 30-40 minutes until cheese is melted and bubbly.