This oven baked 4-ingredient chicken tetrazzini is the kind of practical, comforting casserole that earns a permanent spot in the dinner rotation. It has that old-school, church-supper feel with creamy noodles, tender chicken, and a golden top that makes a simple pantry dinner taste like a family tradition. Recipes like this stuck around for good reason: they stretch a little chicken into a filling meal, come together without much fuss, and are exactly the kind of dish you can count on after a long day.
Serve it with a crisp green salad, steamed green beans, or simple roasted broccoli to balance the richness. Warm dinner rolls or garlic bread are especially good for scooping up the creamy sauce, and if you want to lean into the vintage comfort-food vibe, a little fruit salad or sliced tomatoes on the side fits right in.
Oven Baked 4-Ingredient Chicken Tetrazzini
Servings: 6
Ingredients
12 ounces spaghetti, broken in half
3 cups cooked shredded chicken
2 cans (10.5 ounces each) condensed cream of mushroom soup
1 cup grated Parmesan cheese, divided
Directions
1. Preheat the oven to 350°F and lightly grease a deep 9x13-inch baking dish.
2. Bring a large pot of salted water to a boil and cook the spaghetti until just al dente. Drain well.
3. In a large bowl, stir together the shredded chicken, condensed cream of mushroom soup, and 3/4 cup of the Parmesan cheese until evenly combined.
4. Add the drained spaghetti to the bowl and toss until the noodles are completely coated.
5. Spread the mixture evenly into the prepared baking dish and sprinkle the remaining 1/4 cup Parmesan over the top.
6. Bake uncovered for 30 to 35 minutes, until hot and bubbly around the edges and lightly golden on top. Let stand for 5 to 10 minutes before serving.
Variations & Tips
Add a little milk: If you like a looser, creamier casserole, stir in 1/2 to 1 cup milk with the soup mixture. It helps create more sauce, especially if your chicken is very lean or your noodles soak up a lot of moisture.
Use rotisserie chicken: This is one of my favorite shortcuts for busy weeknights. Rotisserie chicken adds flavor and saves time, making this recipe feel almost effortless.
Include mushrooms or peas: Even though the base recipe keeps things simple, you can fold in a can of drained mushroom pieces, sautéed fresh mushrooms, or a cup of frozen peas for a little extra texture and color.
Make it ahead: Assemble the casserole earlier in the day, cover, and refrigerate until you're ready to bake. If it goes into the oven cold, add about 10 extra minutes to the baking time.
Prevent dry noodles: Be careful not to overcook the spaghetti before baking. Keeping it just al dente helps the pasta finish in the oven without turning too soft.