This 4-ingredient oven Good Friday feast is the kind of golden-crusted casserole you pull together when family is on their way and you have almost no time to prep. It leans on pantry and deli staples—cheese tortellini, jarred marinara, cream, and shredded mozzarella—to create a bubbling, glistening bake with a rich, caramelized top.
While baked pasta casseroles trace their roots to Italian-American home kitchens, this version is streamlined for modern life: no roux, no chopping, just layer, pour, and bake until the edges are deeply browned and the center is steaming and succulent.
Serve this casserole straight from the glass baking dish while it’s still bubbling, with a simple green salad dressed in lemon and olive oil to cut through the richness. Warm garlic bread or a crusty baguette is ideal for swiping through the saucy corners.
For a Good Friday spread, pair it with roasted or steamed vegetables—broccoli, asparagus, or green beans all work well—and a light, citrusy white wine or sparkling water with lemon. A bright fruit salad or citrus dessert makes a clean, refreshing finish.

To keep the spirit of a barely-4-ingredient, low-effort feast, any variations should swap, not add, ingredients. For a slightly lighter version, replace the heavy cream with half-and-half; the sauce will be a bit less rich but still creamy. If you prefer a sharper, more pronounced cheese flavor, use an Italian cheese blend in place of mozzarella, or swap half the mozzarella for shredded provolone. For a spicier take, choose an arrabbiata or spicy marinara instead of regular marinara.
If you want a more pronounced browned crust, use whole-milk, low-moisture mozzarella and bake an extra 5 minutes, or briefly broil at the end, watching closely. You can also change the character of the dish by using spinach or mushroom-filled tortellini instead of cheese tortellini—no other adjustments needed. To make this ahead, assemble the casserole up to the point of baking, cover, and refrigerate up to 24 hours; add about 10 minutes to the bake time and uncover for the last 15 minutes so the top can caramelize.