Swissed Beef Steak In Sour Cream Gravy Recipe

• 1 1/4 to 1 1/2 lbs. beef round steak
• 1/4 c. all-purpose flour
• 1 tbsp. dry mustard
• 1 teaspoon salt
• 1 teaspoon dry thyme leaves
• 1/4 teaspoon black pepper
• 1 tbsp. butter
• 1 tbsp. vegetable oil
• 1 can (16 ounce.) stewed tomatoes
• 1 lg. onion, sliced
• 1/2 c. diced celery
• 2 lg. carrots, pared, diced
• 1 tbsp. brown sugar
• 1/2 c. lowfat sour cream

Directions