Shrimp & mango salad lettuce wraps

Ingredients

• 1 avocado - diced
• 1/2 mango - peel and diced
• 10 large shrimp
• 8 cherry tomatoes - halved
• 1/4 cup mayonnaise
• 1 table spoon or more lemon juice
• 1 head Boston lettuce - leaves in tact and washed and dried
• salt & pepper