Preheat the Oven

1. Step 1: Preheat your oven to 375°F (190°C). Grease a baking dish with olive oil or non-stick spray.

Prepare the Gnocchi

1. Step 1: If your gnocchi needs cooking, boil them in salted water for 2–3 minutes or until they float. Drain and set aside.
2. Step 2: Oven-ready gnocchi can be used directly.

Make the Tomato Sauce

1. Step 1: Heat olive oil in a large skillet over medium heat.
2. Step 2: Sauté the garlic and onion until fragrant and translucent, about 3–4 minutes.
3. Step 3: Add marinara sauce, Italian seasoning, red pepper flakes (if using), salt, and black pepper.
4. Step 4: Simmer for 5–7 minutes, stirring occasionally.

Assemble the Bake

1. Step 1: Spread a thin layer of the tomato sauce on the bottom of the greased baking dish.
2. Step 2: Add the gnocchi, tossing gently to coat them in the sauce.
3. Step 3: Pour the remaining sauce evenly over the gnocchi.
4. Step 4: Sprinkle shredded mozzarella and grated Parmesan over the top.

Bake

1. Step 1: Bake in the preheated oven for 20–25 minutes, or until the cheese is melted, golden, and bubbly.

Garnish and Serve

1. Step 1: Remove the dish from the oven and let it rest for 5 minutes.
2. Step 2: Garnish with fresh basil leaves and serve warm.