For the Zesty Mayo: Whisk the mayo with the Tony Chachere’s No Salt Seasoning Blend in a resealable airtight container and set in fridge until ready to use. This can be made a day or two ahead of time. (Bonus, this is great with fries!)
For the Fried Oysters: Arrange your workstation for ease of flow and minimal mess.
Mix the panko and Tony Chachere’s No Salt Seasoning Blend in a bowl.
Add the flour and a pinch of salt and pepper.
If desired, to a large resealable bag. Whisk the eggs and buttermilk together in a bowl.
Take each oyster and toss them into the bag of flour, closing the bag, and shaking to coat evenly.
One at a time, using tongs, removing the oysters from the flour, shaking off any excess as needed, and dredge in the egg wash.
Drain the oyster of any excess egg and place into the panko seasoning mix. Coat and flip.
Gently press each side once an initial coat is on to make sure there is a good panko coating clinging to the oyster.
Arrange on a wire rack and place in fridge for 2 to 6 hours before frying.
When ready to fry, heat 2 to 3 inches of oil in a large Dutch Oven, making sure to leave at minimum 1 inch from the surface of the oil to the rim of the pot, to 350 - 375 degrees, monitoring the temp with a heat and cook safe thermometer.
With a slotted spoon, carefully place 3 to 4 oysters in the pot. Fry 2 to 3 minutes, flipping as needed, until golden and cooked through.
With a slotted spoon, remove from oil, drain and let sit on a wire rack to cool. Sprinkle with a touch of salt, if desired.
Repeat with the remaining oysters, being careful to adjust the heat as needed to maintain the oil temp.
For the Burgers: Clean and oil grill as needed and preheat to medium-high heat for offset cooking. Prep your burgers by seasoning lightly with salt if desired and cook to the desired temp.
Check off heat for 130 - 135 for medium rare with an instant-read thermometer.
Move burgers to the top rack of the grill where it’s cooler and arrange slices of cheese atop. Close the lid and let melt 30 seconds to a minute.
Meanwhile, brush the melted butter over the buns and grill or toast to a light golden.
Add a dollop of zesty mayo to the bottom and top buns.
Starting with the bottom bun, arrange the layers starting with the lettuce, a cooked patty, next arrange the tomato, two fried Panko Fried Oysters and finally, top with the remaining bun half.
Serve fresh, hot and with napkins!