01 - Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper for easy cleanup.
02 - In a large mixing bowl, gently combine the ground beef, egg, breadcrumbs, milk, Parmesan cheese, minced garlic, oregano, basil, salt, pepper, and parsley until just incorporated. Avoid overmixing. Shape the mixture into 16 equal-sized meatballs. Arrange them on the prepared baking sheet and bake for 18–20 minutes, or until fully cooked through and browned.
03 - Cook the spaghetti or fettuccine in a pot of generously salted boiling water until al dente according to package directions. Drain the pasta thoroughly and toss it with 2 tablespoons of olive oil. Allow the pasta to cool slightly before mixing in the 2 eggs, Parmesan cheese, and 1/2 teaspoon of salt. Ensure everything is well combined.
04 - On a separate lined baking sheet, use a fork to twirl small portions of the seasoned pasta into 8–12 nests, each approximately 3 inches (7 cm) wide. Create a slight hollow in the center of each nest to accommodate a meatball later. Bake these nests in the preheated oven for 10–12 minutes, or until they are lightly golden and set.
05 - While the noodle nests are baking, heat 1 tablespoon of olive oil in a saucepan over medium heat. Add the finely chopped onion and sauté for 3 minutes until softened. Stir in the minced garlic and cook for an additional minute until fragrant. Pour in the marinara sauce, add the thyme, smoked paprika, and season with salt and pepper to your liking. Bring to a simmer and cook for 10 minutes, allowing the flavors to meld.
06 - On individual serving plates, place a noodle nest. Spoon a small amount of the Monster Mash Sauce into the hollow of each nest. Top each nest with one of the baked meatballs, then generously spoon more sauce over the meatball and around the nest.
07 - For a playful touch, optionally decorate each meatball to resemble a 'monster' by placing sliced black olives and small mozzarella balls or bocconcini to create eyes. Garnish the entire dish with fresh basil leaves for a burst of color and aroma.
08 - Serve the Monster Mash Meatball Pasta with Noodle Nests immediately.