Thaw and peel all of the shrimp. Place the shrimp into a medium sized bowl. Add the herb and lemon seasoning, chopped green onions, minced garlic and sea salt.
Pour in about 16-24 ounces PBR and stir it together. Cover and marinate the shrimp in the beer brine for at least one hour.
In a food processor, add half of a red bell pepper and sweet onion along with the smokehouse cajun seasoning and egg.
Use a slotted spoon to remove the shrimp, green onion and most of the garlic from the liquid marinade and place directly into the food processor.
Pulse the food processor 6-8 times, until the shrimp is roughly chopped into small bits and vegetables are even in size throughout. Take care not to over process. The mixture should be lumpy and wet.
Transfer the processed shrimp mixture to a small bowl. Stir in 1/3 to 2/3 cups plain bread crumbs. The mixture should be moist and hold its shape. If it's too wet, add more bread crumbs. If it's too dry (and won't stick together), add a tablespoon of PBR.
Preheat the grill with a cast iron griddle to 350 F (you can also use an indoor grill pan or griddle). Shape the shrimp mixture into 5" patties that are about a half inch thick.
Cook the shrimp burgers 1-2 minutes per side, or until cooked through. The shrimp burgers should be pink and firm.
Serve the shrimp burgers right away on whole wheat brioche buns and top with spicy guacamole, organic tomatoes and onions and arugula. Enjoy with an ice old PBR tall boy; Late July Jalapeno Lime tortilla chips with fresh pico de gallo and black bean and corn salsas; and smoky mozzarella pasta salad.