This bacon spaghetti proves you don’t need a complicated sauce to make an unforgettable pasta dinner. With crispy bacon swirled in every bite, this spaghetti recipe turns a handful of simple ingredients into something everyone loves. To turn spaghetti into the most delicious pasta dinner, you don’t need eggs, just these simple staples: olive oil, bacon, onion, garlic, a pinch of red pepper flakes for a note of heat, and Parmesan cheese for classic cheesy flavor. Cook the pasta.