This Spaghetti Squash Lasagna Bake is alow carb, gluten-free way to eat a ton of fiber and proteins! I got some spaghetti squash from my mom's garden, and made this easy squash casserole meal with tomato sauce, ground beef, and shredded cheese. For my first time cooking spaghetti squash, this spaghetti squash lasagna bake tastes pretty good - and is pretty healthy too. If you love spaghetti but need a pasta-free meal, this might be for you!