Brown the ground beef and onion in a skillet. Add the garlic and cook for an additional minute. Drain the ground beef mixture and place in the slow cooker. Add tomato sauce, stewed tomatoes, oregano, Italian seasoning and salt and pepper. Cook on low for 6 hours.
Thirty minutes before serving, cook the bowtie pasta and drain it. Mix it along with the spinach and cheese into the slow cooker and let it cook for an additional 15-20 minutes.
Recipe by Couponing to Disney at https://www.couponingtodisney.com/slow-cooker-italian-bowtie-dinner/