Begin by cleaning & rinsing the shrimps. If using frozen shrimps defrost them & bring them to room temperature.
Chop the shrimps to small pieces.
Add chopped parsley, mayo, dijon mustard paste, salt, paprika powder, eggs, chopped garlic, onion powder & Oats flour and give everything a good mix.
Finally, add the parmesan cheese and mix everything well. If you feel the batter is too slimy add a bit more oats flour to bind it well.
Heat your favorite skillet over medium low flame, brush oil or drizzle oil.
In the meantime form patty shapes with a scoop of shrimp batter with the help of your palm (you may grease your palms for ease) or scoop out each patty with the help of a cookie scoop. Gently drop them on the hot pan & press them gently to flatten or give a patty shape.
Flip sides, cook until golden over medium low or medium heat.
When the patty is fully cooked give that char look and add more crispiness by searing them over medium high heat for a couple of mins (both sides).