Spaghetti Squash with Meatballs is a flavor-packed, low-carb alternative to traditional pasta. Nutritious squash pairs perfectly with tender meatballs and your favorite marinara—an easy, customizable meal for any night!
Prep Time40 minutesmins
Cook Time1 hourhr
Total Time1 hourhr40 minutesmins
Course: Dinner
Cuisine: American
Keyword: Spaghetti Squash and Meatballs, spaghetti squash with meatballs
Preheat oven to 400°F. Line an extra-large (15x21-inches) sheet pan with parchment paper and set aside. Using a very sharp knife, cut off the stem and base of the spaghetti squash. Cut squash in half lengthwise. Scoop out the seeds and discard.
Drizzle each cut side of the squash with olive oil (1 teaspoon per squash half) and sprinkle with salt (1/4 teaspoon per half) and pepper (1/16 teaspoon per half). Place squash halves on prepared pan, cut side down.Roast for 40–60 minutes or until fork tender (easily pierced with a fork).
While squash is roasting, prepare the meatballs. Keep oven at 400°F. Generously grease a large (unlined) sheet pan with cooking spray and set aside. Grate onion with the large holes on a grater until you have a full 1/2 cup grated onion. Add to a very large bowl. Gently knead all meatball ingredients until they are integrated, being careful not to overwork the meat.
Use a tablespoon measuring spoon to scoop a heaping tablespoon of meat mixture and roll it into a ball. Repeat with all the meat, aiming to get around 30 evenly-sized meatballs. (I find it helpful to lightly grease my hands with cooking spray to make rolling the balls easier).
Place meatballs on the prepared sheet pan, spaced evenly apart. Generously spray meatballs with cooking spray. Bake 18 minutes, then use a spatula and your fingers (careful, they’re hot) to gently flip meatballs to the other side. Bake another 5–10 minutes or until they are nicely golden brown and cooked through.
Meanwhile, warm the marinara sauce in a small pot on the stovetop. Once meatballs are done baking, toss them with the warmed marinara sauce. To the squashes, fluff the interiors with a fork to make squash “spaghetti.” Top the squash spaghetti with the sauced meatballs. If desired, garnish with fresh parsley and freshly grated Parmesan cheese. Add additional pepper and a drizzle of olive oil if desired. Enjoy promptly!
Notes
Note 1: Grating the onion will give these meatballs the best taste and texture. No large chunks of uncooked onions, and all the great flavor will be dispersed throughout. Note 2: Panko breadcrumbs are lighter and crispier than traditional breadcrumbs, which gives these meatballs a great texture.Note 3: It’s important to use the right type of Parmesan cheese. Avoid using shelf-stable grated Parmesan, as it doesn’t have the same flavor as freshly grated cheese. Instead, grab fresh (refrigerated) grated Parmesan or a block of Parmesan and grate it using a fine grater.Note 4: Don’t skip the “secret” ingredients. Beef bouillon powder and Worcestershire sauce may not be traditional meatball ingredients, but they add a rich, meaty flavor that take these meatballs to the next level!Storage: Store leftover meatballs separate from spaghetti squash in airtight containers in the fridge up to 4 days. Leftover meatballs can be frozen (read about the details here).