01 -
Preheat the oven to 400ºF (204ºC) and line a baking sheet with parchment paper.
02 -
Brush 1 tablespoon of olive oil over the cut surface of the spaghetti squash halves. Sprinkle generously with salt and pepper.
03 -
Place squash halves cut-side down on the baking sheet. Roast for 30 minutes, or until tender when pierced with a fork.
04 -
Carefully turn the spaghetti squash over using a gloved hand or tongs and set aside.
05 -
In a bowl, combine cherry tomatoes, minced garlic, shallot (or onion), salt, pepper, and remaining 3 tablespoons of olive oil. Toss well to coat all ingredients.
06 -
Divide the cherry tomato mixture between the two squash halves, placing it in the hollow centers. Some spillover onto the baking sheet is acceptable.
07 -
Cut the Boursin cheese in half and place each portion into one of the squash halves.
08 -
Increase oven temperature to 425ºF and return squash to oven. Roast for 20-25 minutes, until cherry tomatoes begin to burst.
09 -
Remove from oven and transfer the tomato-cheese mixture to a bowl. Use a fork to shred the inside of the squash halves, leaving the strands in the shell.
10 -
Add fresh basil to the tomato-cheese mixture along with salt and pepper to taste. Stir until well combined, breaking some tomatoes as you mix.
11 -
Return the mixture to the squash shells, distributing equally. Garnish with additional fresh basil, olive oil drizzle, or balsamic glaze if desired. Serve immediately.