Tennessee Onions

Name: Tennesse Onions
Prep time: 5 min
Cook time: 35 min
Yield: 8
Ingredients: 1 tsp Garlic powder; 1/2 tsp Oregano; 3 Sweet onions; 1 tsp Salt; 4 tbsp Butter; 1 cup Cheddar cheese; 1 cup Italian blend cheese; 1/2 cup Parmesan cheese