Preheat your oven to 400 degrees f.
Prepare the boats by cutting the avocados in half and removing the pit.
Using a spoon, scoop out some flesh to create a larger spot for your filling.
Rub a slice of lemon (or brush with fresh lemon juice) on the surface to prevent the avocado from browning.
Place the boats in a baking dish and set them aside. Keep the remaining avocado flesh to add to the filling.
In a large bowl, add the avocado flesh together with your fresh lemon or lime juice and mash it together with a fork. Add in the homemade mayonnaise, half of the fresh cilantro, green onions, jalapeno, sea salt, and pepper to taste, half of the cheese, and all of your chopped shrimp.
Stir well to combine.
Divide your shrimp mixture equally between each of the avocado boats and then top with the remaining cheese. Broil for 3-5 minutes, or until the cheese is melted.
Remove from the oven and sprinkle with remaining fresh cilantro and serve immediately with fresh lemon or lime wedges.
Enjoy!