The best things really do come to those who wait, and this spaghetti casserole is your proof! Onions, garlic, bell pepper and crushed tomatoes give this dish an excellent base for any pasta, but adding Johnsonville Smoked Sausage is essential to create a mouth-watering savory flavor that makes this recipe a hit. Waiting for this meal to finish in the oven may make your stomach go into overdrive, but having a perfectly prepared casserole is definitely worth it.