Pre heat oven to 375 degrees F.Spray a large baking sheet or cookie sheet with non-stick cooking spray or olive oil spray, set aside.Combine ½ tsp salt, lime zest, and chili powder in a small bowl. Sprinkle all over the raw shrimp. Lay the shrimp on the cookie sheet and spritz with the non stick cooking spray or olive oil spray. Bake for 5-8 minutes or until the shrimps turn pink and curl in on themselves.Meanwhile combine the diced avocado, lime juice and remaining ½ tsp salt in a small bowl.Combine the sour cream and minced chipotle pepper in a different small bowl.Assemble your shrimp taco bites by placing a tsp of avocado mixture in a tortilla chip, followed by a ½ tsp of sour cream mixture, then top with a chili-lime shrimp.Sprinkle with the chopped cilantro. Enjoy!