Preheat oven to 400 F. Line a baking sheet with parchment paper or a silicone mat and set aside.
Wash and slice the ends off of each tomato. Then slice into tomatoes into 1 to 1.5 inch thick slices. You should get 3 slices per tomato.
Arrange the tomato slices on the prepared baking sheet. Then drizzle the tops with olive oil, and sprinkle on garlic powder, Italian seasoning, salt, and pepper.
Divide the parmesan cheese equally between the tops of the tomatoes.
Bake for 12-15 minutes, or until tomatoes are softened and cheese is bubbly.
Remove from oven, and top with fresh basil and parsley. Serve warm.
Notes
I used Roma tomatoes because they are fleshier than other varieties and hold up well to being roasted.If you want to brown the cheese further you could broil for 1-2 minutes after baking.