Slice eggs in half lengthwise; put yolks in a bowl and whites on a plate. Mash yolks with mayonnaise, pesto, ½ tsp salt, and pepper. Spoon or pipe yolk mixture into whites. Melt butter in a small skillet over medium-high heat. Add panko, parsley, oregano, and ½ tsp salt and cook until crumbs are golden. Sprinkle eggs with panko mixture. Kitchen Counter Per serving: 100 calories, 2g carbs, 4g protein, 9g fat, 100mg cholesterol, 230mg sodium, 0g fiber