Easy Crockpot Stuffed Bell Peppers

■6 Green Peppers Washed

■1 Tbs. Shortening

■1 1/2 - 2 Lb. Ground Beef

■1 C. Cooked Rice

■1 Sm. Onion

■1 Tsp. Salt

■1/8 Tsp. Black Pepper

■dash of Basil

■1/2 C. Ketchup

■1 8-oz. Can Tomato Sauce W/ or W/o Seasoning