01 -
Heat the oven to 400°F. Cut the spaghetti squash in half lengthwise and scoop out the seeds. Brush the cut sides with 1 tablespoon olive oil, then season with salt and pepper.
02 -
Place the squash cut-side down on a parchment-lined baking sheet. Roast for 35-45 minutes, until the flesh is tender and pulls into strands with a fork.
03 -
While the squash roasts, heat 1 tablespoon olive oil in a large skillet over medium heat. Add the onion and cook for 3-4 minutes, then add the ground turkey and cook, breaking it up, until no pink remains and it reaches 165°F.
04 -
Stir in the garlic, Italian seasoning, red pepper flakes, marinara, salt, and black pepper. Simmer for 5-7 minutes, until the sauce thickens slightly.
05 -
Turn the roasted squash halves cut-side up and let them cool for 5 minutes. Use a fork to scrape the flesh into strands, leaving the shells intact.
06 -
Toss the squash strands with the turkey marinara in a large bowl, or mix gently inside each shell. Divide the filling between the squash shells and set them back on the baking sheet.
07 -
Top with mozzarella and parmesan. Bake for 10-12 minutes, until the cheese is melted and bubbling. Broil for 1-2 minutes if you want more browning.
08 -
Sprinkle with basil or parsley and let the boats rest for 5 minutes before serving. Add extra warm marinara at the table if desired.