Preheat oven to 375 degrees F.
Spray 9x13" casserole dish with cooking spray. Set aside.
Using knife and spoon, core each tomato, scooping out all of the insides.
In large skillet heat olive oil over medium-high heat.
Add onion and peppers, sauteeing until they soften, about 5-7 minutes.
Add corn, black beans, cumin, chili powder, garlic, and salt.
Cook for another 4-5 minutes, until it warmed through. Remove from heat and add 1 cup of the cheese.
Spoon about ¼ cup into each tomato, depending on the size of your tomatoes.
Top with about 1 tablespoon of cheese each.
Place into prepared baking dish
Bake in preheated oven for 15-20 minutes, until cheese is melted.
Serve and enjoy!