Halloween appetizers!

Ingredients

• 1 tbsp vegetable oil
• 1 onion chopped
• 4 cloves garlic
• 1/4 tsp each salt and pepper
• 1 540 ml pinto or white kidney beans
• 2 avocados
• 1/4 light mayonnaise
• 2 tbsp lime juice
• 2 cups salsa
• 1/2 cup light sour cream
• 2 black olives