Start by cutting your spaghetti squash in half and scoop out the seeds.

Place the squash, with the cut side up on a baking sheet or bar pan. Drizzle with olive oil and sprinkle with a bit of garlic.

Bake at 400 degrees for 45 minutes or until the insides of the squash can be "fluffed".

Remove the squash from the oven and fluff up the spaghetti part. Carefully mix the cheese and diced tomatoes into each half of the squash.

Place back in the oven and bake a little while longer until the cheese is melted. Serve warm.