Combine your ground turkey, both cheeses, garlic powder, paprika, and oregano in a large mixing bowl. Use your hands to mix everything until just combined—don't overmix or you'll end up with dense, tough patties. I learned this the hard way after pounding the mixture for three minutes and getting hockey pucks instead of bites.
Set up three shallow bowls: one with flour, one with panko breadcrumbs mixed with a pinch of salt, and one with beaten egg. This assembly line makes the dredging process super fast and keeps your hands less messy. Trust me on this—it's worth the extra minute to set up.
Shape the turkey mixture into 24 small patties, about 1.5 inches wide and 1/2 inch thick. They should fit nicely in your palm. Bigger patties look fancier but take longer to cook through, so stick with this size for even cooking.
Coat each patty with flour first, then dip in beaten egg, then roll in panko breadcrumbs until fully covered. Place coated patties on a parchment paper–lined tray. You can refrigerate these for up to 2 hours before cooking, which makes them perfect for prep-ahead entertaining.
Heat olive oil in a large skillet over medium-high heat until it shimmers. Working in batches so you don't overcrowd the pan, cook patties for 3 to 4 minutes per side until golden brown. Don't move them around—let that crust develop on the bottom before flipping.
Transfer cooked patties to a paper towel–lined plate to drain excess oil slightly. Meanwhile, prep your berry topping by arranging grapes, blueberries, and strawberries on a serving platter. You can serve the berries alongside the patties or nestle them underneath for that patriotic presentation.