Recipe Background
Yep, that's right. 4-Ingredient Casserole really only has four ingredients. Well, honestly, it can have up to 5 ingredients if you're craving a little garden freshness from a layer of spinach. Otherwise, it's just bright tomato sauce, cheesy and tender ravioli, and melty mozzarella with a topping of sharp and nutty parmesan. 4-Ingredient Casserole impresses with its own simplicity, and it is sure to please the crowd! It's amazing what only 4 (or 5) ingredients can do!
Yep, that's right. 4-Ingredient Casserole really only has four ingredients. Well, honestly, it can have up to 5 ingredients if you're craving a little garden freshness from a layer of spinach. Otherwise, it's just bright tomato sauce, cheesy and tender ravioli, and melty mozzarella with a topping of sharp and nutty parmesan. 4-Ingredient Casserole impresses with its own simplicity, and it is sure to please the crowd! It's amazing what only 4 (or 5) ingredients can do!
Ingredients
- 2 1/2 cups marinara sauce
- 1 (24-ounce) package frozen cheese ravioli
- 1 (8-ounce) package frozen spinach optional, thawed and squeezed-dry
- 2 cups mozzarella cheese shredded
- 1/4 cup parmesan cheese grated
Directions
- Preheat the oven to 400 degrees F.
- Spray a 9x13-inch baking dish with cooking spray.
- Pour a thin layer, about 1/2 cup, of the marinara sauce to cover the bottom of the prepared baking dish.
- Arrange 1/2 of the frozen ravioli in a single layer over the sauce.
- Layer the spinach on the ravioli, if using.
- Add 1/2 of the marinara and 1/2 of the mozzarella in even layers in the baking dish.
- Repeat the layers of the ravioli, the sauce, and the mozzarella once, starting with the ravioli.
- Sprinkle the parmesan cheese on top.
- Cover the baking dish with aluminum foil and bake for 20 minutes.
- Remove the foil and bake, uncovered, until bubbly and hot in the center, about 20-25 minutes.
- Let stand for 10 minutes.
- Serve.
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