Spaghetti Squash with onion

1 spaghetti squash (8-inch) 1 cup onion , chopped 2 garlic cloves , crushed 2 medium fresh tomatoes 1/2 lb mushroom , sliced salt & pepper 1 cup cottage[...]

1 (3 lb) spaghetti squash , about 3 tablespoons butter 1/3 cup finely chopped onions or 1/3 cup shallot 2 cups grated gruyere cheese , about 6 ounces (175 g)[...]