Chili Cheese Dog Casserole

One of many great main dish recipes from my friend Tasha. Many of my often-made dishes are from her, so more to come.
1 c. chopped green pepper
1/2 c. chopped onion
1/2 c. chopped celery
1 T. olive oil
1 pkg hot dogs, sliced
1 can chili
1 T. brown sugar
1/2 t. garlic powder
1/2 t. chili powder
1 c. grated cheddar cheese
1 pkg cornbread mix, or recipe below

Mix cornbread mix per instructions. Spread half of the batter in a greased, 9x9 pan. Saute veggies in oil. Add hot dog and cook 3-4 minutes. Add chili and spices and heat through. Stir in 3/4 c. cheese. Pour mixture over batter in pan. Spread remaining batter on top and sprinkle with remaining cheese.

Bake uncovered at 350 for 28-32 minutes. Let sit 5 minutes.

Cornbread recipe:
3/4 c. flour
1/3 c. sugar
1/4 c. cornmeal
1 1/2 t. baking powder
1/4 t. salt
2 T. milk
1 egg
2 T. and 2 t. oil
1 1/2 T. melted butter

Mix dry and wet ingredients separately. Blend together lightly.