To create the Sheet Pan Broccoli Tortellini Bake, follow these straightforward steps:

1. Preheat your oven: Set it to 400°F (200°C) so it comes to temperature while you prepare the dish.
2. Prepare the sheet pan: Line a large baking sheet with parchment paper or lightly grease it with cooking spray.
3. Prepare the broccoli: Place the broccoli florets on the sheet pan. Drizzle with olive oil, garlic, Italian seasoning, salt, and pepper. Toss until evenly coated.
4. Add the tortellini: Spread the cheese tortellini evenly over the broccoli on the sheet pan.
5. Pour on the sauce: Evenly distribute marinara sauce over the broccoli and tortellini to cover.
6. Add cheese: Sprinkle the mozzarella and Parmesan cheese generously over the entire dish.
7. Bake the dish: Place the sheet pan in the preheated oven and bake for 20-25 minutes or until the cheese is bubbly and golden, and the broccoli reaches desired tenderness.
8. Garnish: Once out of the oven, let it cool for a few minutes. Garnish with fresh basil or parsley, if desired.

These simple steps will lead you to create a dish that bursts with flavor in every bite.