Recipe: Pepper Steak

I found this recipe in one of my many cookbooks-

Pepper Steak

1 1/2 lb round steak
1/2 cup catsup
1 1/2 tbsp. flour
1 tsp. beef base mixed in 3 tbsp. of water
2-3 sliced green peppers
1/4 - 1/2 cup water
1 onion thinly sliced
1 (4 oz.) can mushrooms
2 tbsp. soy sauce
Salt and Pepper to taste

Cut steak in strips. Lightly brown in a hot skillet. Remove meat; add catsup, flour, base, soy sauce and water to the skillet. Simmer 5 minutes. Return meat to pan, cover and cook over low heat until steak is tender (about 1 hour), adding more water if needed. Add salt, pepper, onion slices, mushroom and pepper slices. Cover and steam until vegetables are tender. Serve over steamed rice.