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Spaghetti Squash with Marinara and Garlic Bread
A 70-minute Italian-American dinner for 4 — 530 calories per serving.
per serving, estimated
Roasted spaghetti squash strands topped with a rich, herb-forward marinara sauce, served alongside crispy, buttery garlic bread.
Ingredients
Serves 4 · custom servings available with a Kiwi account
Roasted Spaghetti Squash with Marinara
- 2 spaghetti squashes (halved lengthwise, seeds scooped out)
- 2 tablespoons olive oil
- 1 teaspoon Kosher salt
- ½ teaspoon Black pepper
- 28 ounces canned crushed San Marzano tomatoes
- 3 tablespoons olive oil
- 1 yellow onion (finely diced)
- 4 garlic cloves (minced)
- 2 tablespoons tomato paste
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- ¼ teaspoon red pepper flakes — optional
- ¾ teaspoon Kosher salt
- ½ teaspoon sugar
- ¼ cup fresh basil (leaves) (torn, for serving)
- 3 ounces grated parmesan cheese (for serving)
Garlic Breadside
- 1 italian bread loaf (halved lengthwise)
- 4 tablespoons unsalted butter (softened)
- 3 garlic cloves (minced or pressed)
- 2 tablespoons fresh flat-leaf parsley (finely chopped)
- ¼ teaspoon Kosher salt
- 1 ounce grated parmesan cheese (optional, sprinkled on top) — optional
Steps
Every amount is written into the step where you use it.
Steps marked like this need your attention — stay close so nothing burns.
Roasted Spaghetti Squash with Marinara
- Preheat the oven to 400°F. 10 min
- Brush the cut sides of the 2 spaghetti squash halves with 2 tablespoons olive oil and season evenly with 1 teaspoon kosher salt and ½ teaspoon black pepper. 3 min
- Finely dice the yellow onion and mince the 4 garlic cloves. 5 min
- Place the squash cut-side down on a parchment-lined baking sheet and roast at 400°F for 40 minutes, until the flesh is tender and easily pierced with a fork. 40 min
- While the squash roasts, heat 3 tablespoons olive oil in a medium saucepan over medium heat, then add the diced onion and cook, stirring occasionally, for 6 minutes until softened and translucent. 6 min
- Timing-sensitive step. Add the minced garlic and 2 tablespoons tomato paste and stir constantly for 1 minute until fragrant and the paste darkens slightly.
- Pour in the 28 oz canned crushed San Marzano tomatoes, then stir in 1 teaspoon dried oregano, 1 teaspoon dried basil, ¼ teaspoon red pepper flakes (optional), ¾ teaspoon kosher salt, and ½ teaspoon sugar; simmer uncovered over medium-low heat for 20 minutes, stirring occasionally, until the sauce thickens. 20 min
- Flip the roasted squash cut-side up and use a fork to scrape the flesh into long spaghetti-like strands, leaving them in the shells or transferring to a serving platter. 4 min
- Ladle the marinara generously over the squash strands, then top with torn fresh basil leaves and grated Parmesan cheese and serve immediately. 2 min
Garlic Breadside
- In a small bowl, mash together 4 tablespoons softened unsalted butter, 3 minced garlic cloves, 2 tablespoons finely chopped fresh parsley, and ¼ teaspoon kosher salt until fully combined. 4 min
- Spread the garlic butter evenly over the cut sides of the Italian bread loaf halves, then sprinkle with 1 oz grated Parmesan (optional) and place cut-side up on a baking sheet. 3 min
- Timing-sensitive step. Bake at 400°F for 10 minutes until the edges are golden and crisp, then broil on high for 1–2 minutes to brown the top. 12 min
- Slice the garlic bread into individual portions and serve alongside the spaghetti squash. 2 min
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Nutrition figures are estimates derived from public reference data and automated calculation. They are not verified by a dietitian and are not medical or dietary advice. Recipes, cooking times, quantities and allergen information are generated automatically and may contain inaccuracies. Kiwi’s allergen filtering is automated and is not a guarantee — it can miss an allergen where an ingredient’s name does not disclose what it contains, or where a product’s formulation differs from the generic ingredient. You must read ingredient labels and confirm for yourself that any food is safe for the people you are feeding. If anyone in your household has a severe or life-threatening food allergy, treat this page as a starting point only. See our full terms.