Make the sauce by mixing sriracha, ketchup, mayonnaise, Greek yogurt, allulose, and minced garlic.
Defrost the frozen shrimp in water (after thawing, cover and microwave for 4-5 minutes). Once heated, toss the shrimp in the sauce (reserve a little sauce).
Spread basil pesto on both sides of the bread (mix with the remaining sauce before spreading).
Lay one slice of bread and layer lettuce, sandwich ham, and sliced tomato (season with a little salt and pepper) in order.
Top with the shrimp coated in sauce.
Add cheddar cheese, a fried egg, and lettuce.
Cover with the other slice of bread and wrap with plastic wrap.