Oven baked 4-ingredient creamy pesto tortellini is the kind of weeknight casserole that earns a permanent place in the rotation because it delivers a lot of comfort with very little effort. Refrigerated cheese tortellini, basil pesto, cream, and Parmesan come together into a rich, bubbling bake that tastes far more involved than it really is. This style of shortcut pasta bake leans on Italian-inspired pantry favorites, turning a handful of ready-made ingredients into something that feels hearty enough for a family meal or casual gathering.
This dish pairs especially well with a crisp green salad dressed in lemon vinaigrette, roasted broccoli, or simple garlic bread for soaking up the creamy pesto sauce. If you are serving it for company, a platter of sliced tomatoes or marinated vegetables helps balance the richness, and a chilled glass of Sauvignon Blanc or sparkling water with lemon makes an easy, fresh accompaniment.
Oven Baked 4-Ingredients Creamy Pesto Tortellini
Servings: 6
Ingredients
20 ounces refrigerated cheese tortellini
1 cup prepared basil pesto
1 cup heavy cream
1 cup grated Parmesan cheese, divided
Directions
1. Preheat the oven to 375°F and lightly grease a rectangular glass baking dish.
2. In a large bowl, stir together the basil pesto, heavy cream, and 1/2 cup of the Parmesan until smooth and evenly combined.
3. Add the cheese tortellini to the bowl and toss gently until all of the pasta is well coated in the creamy pesto mixture.
4. Transfer the tortellini mixture to the prepared baking dish and spread it into an even layer. Sprinkle the remaining 1/2 cup Parmesan evenly over the top.
5. Bake for 25 to 30 minutes, until the sauce is bubbling around the edges and the top is lightly golden. Let rest for 5 minutes before serving.
Variations & Tips
Add protein: For a more filling casserole, stir in shredded rotisserie chicken or pieces of cooked Italian sausage before baking. Both options work well with the richness of the pesto and make the dish substantial enough to stand alone.
Use tortellini wisely: Refrigerated tortellini is ideal here because it cooks quickly in the sauce as the casserole bakes. If you use frozen tortellini, add a few extra minutes to the baking time and make sure the center is hot before serving.
Change the cheese: A blend of Parmesan and mozzarella creates a slightly stretchier, more browned topping. If you prefer a sharper finish, a little Pecorino Romano can be substituted for part of the Parmesan.
Loosen the sauce if needed: Some pestos are thicker and saltier than others. If your mixture seems very dense, add a small splash of milk or a few spoonfuls of water before baking so the tortellini stays creamy instead of dry.
Add vegetables: Baby spinach, halved cherry tomatoes, or steamed broccoli can be folded into the tortellini mixture for extra color and balance. This is a practical way to stretch the casserole while keeping the ingredient list simple.