Crock Pot Sloppy Joes - A Duck's Oven

Ingredients

• 1 lb ground beef
• 1/4 cup finely minced onion
• 1 tsp minced garlic
• 1 15 oz can tomato sauce
• 1/4 cup water
• 1 tbsp red wine vinegar
• 1 tbsp worcestershire sauce
• 1/2 tsp salt
• 1/4 tsp black pepper
• 1 tbsp chili powder
• 1 tsp red pepper flakes
• 2 tsp yellow mustard
• hot dog or hamburger buns
• butter