Cut the squash in half lengthwise with a sharp knife and remove the seeds with a spoon. Brush the flesh of each half with 1 teaspoon of olive oil and season with salt and pepper. Put the halves flesh-side down on a baking sheet and bake at 400°F until the edges just turn brown, about 45 minutes.
About 10 minutes before the spaghetti squash is fully cooked, make the fajita shrimp. In a large non-stick skillet, stir-fry the bell pepper and onion in olive oil for about 3-4 minutes over high heat, until slightly charred.
Divide the fajita shrimp between the spaghetti squash boats and top with cheese. Return it to the oven for about 5 minutes, until the cheese has melted and the dish is heated nicely. Garnish with chopped cilantro or parsley. Serve.
This Shrimp Fajita Stuffed Spaghetti Squash is the perfect combination of vegetables, shrimp, and spices. This tasty dish is a healthy, low-carb way to enjoy your favorite fajita flavors.