
Step 3: Make the Creamy Layer
- In a medium bowl, combine cream cheese, sour cream, mayonnaise, garlic powder, and onion powder.
- Mix until smooth and creamy. This layer will add the “million-dollar” richness that sets this casserole apart.
Step 4: Assemble the Casserole
- Preheat your oven to 350°F (175°C).
- Grease a 9×13-inch baking dish lightly with butter or cooking spray.
- Spread a thin layer of meat sauce at the bottom of the dish.
- Layer half of the cooked spaghetti over the sauce.
- Dollop half of the creamy mixture over the spaghetti and gently spread it with a spatula.
- Pour half of the remaining meat sauce on top.
- Sprinkle 1 cup of mozzarella and some Parmesan cheese over the layer.
- Repeat layers with the remaining spaghetti, creamy mixture, meat sauce, and finish with the remaining mozzarella, Parmesan, and optional cheddar.
Step 5: Bake to Perfection
- Cover the casserole with aluminum foil and bake for 20 minutes.
- Remove the foil and bake for an additional 10–15 minutes until the top is golden, bubbly, and slightly crispy.
- Let it rest for 5 minutes before serving to allow the layers to set.
Step 6: Serve and Enjoy
- Garnish with fresh parsley or basil for a pop of color and flavor.
- Serve hot and watch it disappear! This casserole pairs beautifully with a crisp green salad or garlic bread.
Tips for the Perfect Million Dollar Spaghetti Casserole
- Cheese variations: Feel free to experiment with provolone, Monterey Jack, or even a little blue cheese for a twist.
- Add vegetables: Bell peppers, mushrooms, or spinach can be added to the meat sauce for extra nutrition.
- Make ahead: Assemble the casserole a day ahead and refrigerate; bake it the next day for an even richer flavor.
- Spicy kick: Add red pepper flakes or a splash of hot sauce to the meat sauce for heat.
Why It’s “Million Dollar”
The combination of creamy, cheesy layers with savory meat sauce makes this spaghetti casserole a luxurious comfort dish that feels indulgent without being complicated. Every bite delivers a perfect balance of flavors and textures—from the tender spaghetti to the rich creaminess and melty cheese topping.
If you want, I can also create a visual step-by-step guide with pictures for this casserole that makes it look like a professional recipe page.
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