Cook and drain your gluten-free pasta, spaghetti squash, or other gluten-free pasta of choice, and set it aside.
1 Package Gluten-free Spaghetti
In a skillet, cook and drain the ground beef.
1 Pound Ground Beef
Add the diced onions and mushrooms to the ground beef and cook them until they become soft.
1 Small Diced Onion, 1 Cup Sliced Mushrooms
Add the marinara sauce and spices and put it aside.
1 28 OZ Jar Marinara Sauce, 2 Teaspoons Salt, 1 ½ Teaspoons Pepper, 2 ½ Teaspoons Italian Seasoning, 2 Cloves Minced Garlic
Combine the butter, cream cheese, sour cream, and half the parmesan cheese into a small bowl and mix.
2 Tablespoons Butter, ½ Cup Sour Cream, 8 Ounces Cream Cheese, 1 Cup Parmesan Cheese
Toss the cooked spaghetti into the cream cheese mixture.
Preheat your oven to 350 degrees.
Layer a small amount of the marinara sauce into the bottom of a casserole dish.
Then put a layer of the coated spaghetti.
Top with a layer of mozzarella and parmesan.
1 Cup Parmesan Cheese, 2-3 Cups Mozzarella Cheese
Add another layer of the marinara sauce.
Repeat until the baking dish is filled, and sprinkle the remaining cheese on top.
2-3 Cups Mozzarella Cheese, 1 Cup Parmesan Cheese
Bake in the preheated oven for about 30-45 minutes or until the cheese bubbles and gets slightly golden.
Allow it to cool for a few minutes before serving and enjoy!
Notes
Ingredient substitutions.
Gluten-free pasta. - If you don't want to use gluten-free pasta, you can easily use cooked and shredded spaghetti squash instead. I have also used the palm heart noodles in this gluten-free pasta bake, and they worked great and kept their texture in this dish. That will also make this a low-carb pasta dish.
Gluten-free spaghetti sauce - You can use whatever brand of gluten-free spaghetti sauce that you like in this cheesy pasta bake. When I want to add more veggies to this gluten-free pasta bake, I will use a batch of my vegetable marinara.
Ground beef - You can also use ground turkey or chicken instead of ground beef if you prefer.
Vegetarian pasta bake. - If you want to make this gluten-free baked pasta vegetarian, you can simply leave the ground meat out of the sauce.
Tips and tricks.
Bring your cream cheese and butter to room temperature. This simple step will make it easier to toss the spaghetti squash with it.
Don't overcook your pasta. - Because this gluten-free baked pasta uses already cooked pasta to assemble it, you want to make sure you only cook your gluten-free pasta till it's almost done and not all the way done. If you cook it all the way, your gluten-free pasta can become soggy since it is cooked more in the sauce.