Slow Cooker Pasta e Fagioli Soup

extra virgin olive oil

lean ground beef

whole carrots, diced

celery stalks, diced

medium onion, diced

can crushed tomatoes

each) beef broth

whole bay leaves

dried oregano

dried basil

dried thyme

salt and pepper to taste (I added 1 tsp salt and ¼ teaspoon pepper)

cannellini beans, drained and rinsed

red kidney beans, drained and rinsed

ditalini pasta, uncooked