Chicken Spinach Casserole

• 6 chicken breast (halves)
• 1 accent
• 1 pimentos (canned)
• 475 ml sour cream
• 240 ml milk
• 240 ml water chestnuts (diced)
• 170 ml mushrooms with juice (canned)
• 170 gr cheddar cheese (shredded)
• 240 ml chicken stock
• 80 ml lemon juice