01 -
In a skillet over medium heat, heat olive oil and sauté onions, garlic, and bell peppers until soft (about 5 minutes). Add ground beef, cook until browned. Drain excess fat if needed.
02 -
Place cooked beef and veggies into the slow cooker. Add beef broth, Worcestershire sauce, salt, and pepper. Stir in uncooked pasta.
03 -
Cover and cook on High for 2 to 2.5 hours, or Low for 4 hours, stirring once halfway through if possible. Check that pasta is tender and liquid mostly absorbed.
04 -
Add heavy cream, provolone pieces, and mozzarella. Stir gently, cover, and cook another 10–15 minutes until cheese melts and coats the pasta.
05 -
Scoop out hot and gooey servings. Optional: Garnish with parsley or crushed red pepper for a little heat.