Heat oven to 350 degrees.

Cook tortellini al dente, according to package instructions.

While tortellini is cooking, heat a cast iron skillet over medium heat.

Add marinara sauce and 1/4 cup Parmesan cheese to skillet and warm, stirring occasionally until tortellini is done cooking (about 7-9 minutes).

When tortellini is done cooking, drain and then pour into the skillet, stirring to coat in sauce.

Turn stove off and fold in mozzarella cheese, cherry tomatoes, and 1/2 of the chopped basil. Once combined, top with remaining Parmesan cheese.

Place the skillet in the oven and baked for 25 minutes. Top with remaining basil and serve.