Tender roasted spaghetti squash filled with shredded BBQ chicken, peppers and onion, then finished with creamy dairy-free ranch. This gluten-free, dairy-free spaghetti squash dinner uses a two-stage roasting method to keep the squash from becoming overly watery, with Whole30 and Paleo-friendly sauce options.
Cut the spaghetti squash in half lengthwise and scoop out the seeds.
Lightly brush the cut sides with oil and season with salt.
Place the squash halves cut-side down on a rimmed baking sheet.
Bake for 35 minutes.
Flip the halves so the cut sides face upward and increase the oven temperature to 410°F / 210°C.
Bake for another 20 minutes, or until the flesh separates easily into strands but still has some firmness.
Optional: broil for 2–3 minutes for more caramelized edges.
Cool for about 10–15 minutes before handling.
Cook the Chicken
While the squash cooks, season the chicken breasts with salt and pepper.
Bake them in a separate baking dish for approximately 25–30 minutes, or until fully cooked.
Let them rest briefly, then shred with two forks.
Make the Sauce and Chicken Filling
Heat the avocado oil in a skillet over medium heat.
Add the chopped red onion and bell pepper and sauté until tender.
Add the shredded chicken. Stir in thehomemade BBQ sauce, or ½ cup store-bought BBQ sauce mixed with ½ cup marinara or well-drained diced tomatoes. Cook for 2–3 minutes, until hot and thick enough to coat the chicken.
Assemble the Boats
Use a fork to loosen the cooked spaghetti squash into strands while keeping the shells intact.
Layer the squash strands with the BBQ chicken mixture inside each shell.
Drizzle with dairy-free ranch.
Finish with chopped parsley or cilantro and serve warm.
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Notes
BBQ sauce: My homemade BBQ sauce can be used as written. If using a concentrated store-bought BBQ sauce, I recommend combining ½ cup BBQ sauce with ½ cup marinara or well-drained canned diced tomatoes. This gives the filling a more balanced tomato-BBQ flavor without making it overly sweet or salty. If the mixture looks loose, simmer it for a few minutes before filling the squash.Spaghetti squash: Don't overcook it. Slightly firm strands hold up better beneath the filling.Less-watery squash: Roast cut-side down first, then finish cut-side up at higher heat.Chicken shortcut: Replace the raw chicken breasts with about 12 ounces cooked shredded chicken.Whole30/Paleo: Use a compliant BBQ sauce and ranch if needed.Dairy-free: The recipe is dairy-free as written when you use dairy-free ranch.Serving without the shell: You can serve the spaghetti squash and BBQ chicken in bowls if you don't want to make boats.Make ahead: Roast the squash and prepare the chicken up to 1–2 days in advance.Storage: Refrigerate leftovers for up to 3 days.Freezing: I don't recommend freezing the assembled spaghetti squash. Freeze the BBQ chicken filling separately instead.