I have a microwave chili recipe that you could probably adapt.
1 lb. ground beef
1 med. onion, chopped
1 med. green pepper, chopped
1 clove, garlic,minced
1 can (16 oz.) stewed tomatoes or diced tomatoes
1 can (15-1/2oz.) kidney beans, drained
1 can (8 oz.) tomato sauce
2 tsp. Chili powder or more to taste
1/4 tsp. Oregano
The recipe says to brown the ground beef in a 2-qt. casserole in the Microwave. Then add the onion, pepper and garlic and cook until tender. Then add everything else and microwave (covered) on Hi for 5 mins., remove cover, stir, Microwave on Med. for 20 more mins. This tastes better after it sits for awhile, or the next day.
You could brown the beef in a skillet and add the vegetables until tender. Then put everything in the crock pot and cook on Low for several hours.
This makes about 2 qts. or 4 servings and could easily be doubled.
HTH
Elaine