Sweet and spicy Mango Shrimp Lettuce Bites are topped with fresh mango salsa and wrapped up in delicate butter lettuce. These little Mango Shrimp Lettuce Bites are my favorite thing to make for an impromptu dinner because they come together so quickly.  In just about 15 minutes you can have these prepared and ready for the table.  I always like to keep a bag of large shrimp in my freezer for times when you need a quick protein.  Maybe you forgot to plan dinner or you have surprise guests show up.  Shrimp can be thawed in very little time.  I like to set them in a bowl under a gentle…