cinco de mayo mexican casserole

Ingredients

• 1 pound hambuger meat (ground beef)
• 1/4 teaspoon salt and pepper
• 1/4 teaspoon chilli powder
• 1 can cream of mushroom soup
• 1 can water.
• 1 - small onion diced
• 1 can rotel (or any brand of tomatoes and green chillis)
• 1 - bag taco or nacho cheese chips
• 1 pound grated cheddar cheese
• 1 can sliced black olives
• 1 medium fresh tomato (diced)