Preheat oven to 400°F. Line a baking sheet with foil.

Toss tenderloins with oil, garlic, salt, pepper, and oregano in a bowl.

Mix Parmesan and panko on a plate. Press each tenderloin into the mix to coat.

Place on the sheet and bake 12–14 minutes until cooked through.

Let rest 5 minutes before packing into lunchboxes. Cold or warm, both work fine.