Taco Casserole

Ingredients

• 1 1/2 lb. ground chuck
• 1 green pepper, diced
• 1 small onion, diced
• 1 garlic clove, minced (optional)
• 1 small can chopped green chilies
• 1 pkg. taco seasoning mix
• 1 small jar mild picante sauce
• 2 tomatoes, peeled and diced
• 1 small can tomato paste
• 2 Tbsp. chili powder
• 1 large container sour cream
• grated Cheddar cheese
• 12 tortilla shells (corn)
• 1/4 c. sliced black or green olives
• salt and pepper to taste