Crock Pot Spaghetti 1 jar of pasta sauce 1 cup water 15 frozen meatballs 8 oz of pasta noodles Instructions Pour all of the ingredients into your crock pot. Mix together. Set your crock pot on either high for 4 hours or low for about 6 hours. If you want that slow cooked affect, I recommend the low setting. If you are in a hurry and need it quickly, I would put it up to high.