Preheat oven to 400 degrees Fahrenheit.
Cut the two spaghetti squashes in half. Remove the seeds from the spaghetti squash (you can do this by scooping them out with a spoon).
Brush the inside of each spaghetti squash with olive oil. Then, season the inside of each spaghetti squash with salt and pepper.
Turn the spaghetti squash upside down (skin side up) on a baking pan. Bake the spaghetti squash for 30 minutes. Let the squash rest for about 10 to 15 minutes, and then gently scrap the cooked squash out with a fork. Set the removed spaghetti squash aside, and start prepping your garlic butter sauce.
Melt the butter in a pan on medium heat. Once the butter has melted, add the minced garlic. Cook the garlic for about one minute.
Then, add your squash to the pan. Sprinkle one cup of the grated Parmesan cheese on top of the spaghetti squash. Gently stir the mixture, and let it cook for about 2 minutes. Salt and pepper to taste.
Remove from heat, and top the spaghetti squash with the additional ½ cup of shredded Parmesan cheese. And you’re done!