Mexican Casserole

• 1 tomato
• 1 lettuce (shredded)
• 230 gr coarsly corn chips (crushed)
• 230 ml sour cream
• 200 gr turkey (chopped cooked)
• 200 gr chicken gravy
• 170 gr cheddar (shredded)
• 65 gr green chili peppers (diced)
• 18 gr pitted ripe olives (sliced)
• 2 slices green onions