Can I make this ahead of time?
Yes. Prepare the squash halves through step 5, cool completely, cover, and refrigerate up to 2 days. Reheat at 350°F for 10–15 minutes before adding sausage and basil.
What can I substitute for Boursin cheese?
Cream cheese mixed with Italian seasoning and garlic works well. Use about 4 oz cream cheese blended with 1 tsp Italian seasoning and 2 minced garlic cloves for similar creaminess.
How do I know when the spaghetti squash is done?
Pierce the flesh with a fork at 30 minutes; it should shred easily into strands. If it's still firm, bake another 5–10 minutes. Flesh should separate readily from the skin.
Can I use mild Italian sausage instead of hot?
Yes. The flavor will be less spicy, but the recipe works the same. Cook it until browned and crispy, about 8–10 minutes, breaking it up as it cooks.
Do I need to drain the cherry tomato liquid?
The tomatoes release liquid while baking, which combines with the melted Boursin to form the creamy sauce. No draining needed; it's part of the dish.