Slow Cooker Italian Sausage, Beef, and Vegetable Ragu

Italian Sausage, in a roll or links with casing removed

ground beef

yellow onion, chopped

can diced tomatoes, undrained

tomato paste

red wine

stalks celery, chopped fine

carrots, peeled and sliced into rounds

sliced mushrooms

garlic, minced

thyme

oregano

Salt and pepper

pasta of your choice (I like something hearty like rigatoni or cavatappi)