Squash Casserole

Ingredients

• 4 cups cooked squash
• 1 stick oleo
• 1 1/2 cups grated Ritz crackers
• 2 eggs
• 1/2 cup sour cream
• 1 tsp. baking powder
• 1 tbsp. prepared mustard
• 1 small onion, chopped
• 1 cup or more grated cheese
• salt and pepper to taste