Crockpot Italian Beef & Potato Casserole

• 450 gr beef (lean ground)
• 300 gr tomatoes (canned)
• 120 ml water
• 110 gr mozzarella cheese
• 85 gr scalloped potatoes
• 2 gr garlic powder
• 1 gr oregano
• 1 gr basil
• 1 package pizza sauce