Oriental Beef With Ginger

• 4 rice (servings hot cooked)
• 3 tomatoes
• 1 garlic clove
• 1 green pepper
• 450 gr beef steak (boneless)
• 240 ml beef stock preferably homemade
• 120 gr onions (sliced)
• 100 gr celery (diagonally sliced)
• 30 ml soy sauce
• 30 ml vegetable oil