Heat oil over medium heat, brown steak strips in 2 batches, add garlic, cook 2 minutes

Transfer meat, garlic, and juices to crock pot

Add onion, soy sauce, sugar, salt, ginger, and black pepper into crock pot

Cook on low 6 to 8 hours or until meat is tender

Add bell pepper in final hour of cooking

Blend water and cornstarch until smooth, stir onto crockpot

Turn to high and cook 15 minutes until thickened

Serve over rice