3 melt mouth cube steak Recipes

cube steaks (about 4 pieces) or 1 lb round steak, beef gravy (beef, mushroom beef, herbed beef, mushroom...mix and match to your liking) or 3 (3/4 oz) envelopes mushroom gravy (beef, mushroom beef, herbed beef, mushroom...mix and match to your liking), water, onion, sliced (optional), sliced mushrooms (optional), white potatoes, peeled and quartered (optional)

all-purpose flour, salt, divided, pepper, divided, cube steaks, vegetable oil, divided, chopped celery (about 2 stalks ), onion, chopped (about 1/2 cup), sliced carrots, drained, spaghetti sauce