Good-Cooking - Aloha Banana Cheesecake

Ingredients

• 1 1/2 cups quick-cooking oats
• 1/2 cup pecans, finely chopped
• 1/2 cup packed brown sugar
• 5 tablespoons butter, melted
• 16 ounces cream cheese, softened
• 1 cup mashed ripe bananas
• 3/4 cup granulated sugar
• 2 teaspoons lemon juice
• 4 eggs
• 1 cup sour cream
• 2 tablespoons granulated sugar
• 1 teaspoon vanilla extract
• Banana slices (for garnish)