Welcome to this delightful creamy meatball sub casserole recipe! This hearty and delicious dish is perfect for a cozy night in or when you're looking for an easy yet impressive dinner idea. Here’s how to make it step by step.
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#### Ingredients
- 1 lb ground beef
- 1/2 cup grated Parmesan cheese
- 1/4 cup finely chopped onion
- 1 clove garlic, minced
- 1 egg
- 2 tablespoons Italian seasoning
- Salt and pepper to taste
- 1 (16 oz) package sub rolls, halved
- 1 can (10.5 oz) condensed cream of mushroom soup
- 1 cup milk
- 1/4 teaspoon nutmeg
- Fresh parsley for garnish
#### Instructions
**Step 1: Prepare the Meatballs**
1. In a large bowl, mix ground beef, Parmesan cheese, chopped onion, garlic, egg, Italian seasoning, salt, and pepper.
2. Use your hands to form small meatballs (about 1-inch in diameter).
3. Set aside on a plate.
**Step 2: Prepare the Casserole**
1. Preheat oven to 350°F (175°C).
2. In an 8x8 inch baking dish, arrange half of the sub roll halves, cut-side up.
3. Top each with a meatball and then cover with the remaining sub rolls.
**Step 3: Make the Sauce**
1. In a small saucepan, mix cream of mushroom soup, milk, nutmeg, salt, and pepper until smooth.
2. Bring to a simmer over medium heat but do not let it boil.
**Step 4: Assemble the Casserole**
1. Pour the warm sauce evenly over the meatballs and sub rolls in the baking dish.
2. Cover the dish with foil and bake for 30 minutes.
**Step 5: Finish Cooking**
1. Remove foil, sprinkle with additional Parmesan cheese if desired.
2. Bake uncovered for an additional 10-15 minutes or until the top is golden and bubbly.
**Step 6: Serve**
1. Let it rest for a few minutes before serving.
2. Garnish with fresh parsley and serve hot with extra sauce on the side.
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#### Tips & Variations
- For added flavor, you can add some sliced mushrooms to the meatball mixture.
- If you prefer a healthier version, use lean ground beef or turkey.
- This dish is great for meal prepping; store leftovers in the fridge for up to 3 days and freeze for longer storage.
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#### SEO-Friendly Meta Description:
Discover how to make a comforting creamy meatball sub casserole with easy-to-follow steps. Perfect for weeknight dinners, this Italian-inspired dish is both delicious and freezer-friendly!
Feel free to tweak the recipe according to your taste preferences or dietary needs! Enjoy your homemade casserole and savor every bite of this comforting meal.