This oven baked 4-ingredients crispy breaded pork tenderloin is one of those weeknight miracles that feels a little bit like cheating. My sister showed me this trick years ago, and I still can’t get over how unbelievably crunchy the coating turns out without any deep-frying or long prep. You slice the pork into medallions, dunk them quickly, pile them snug in a glass casserole dish, and let the oven do all the work. It’s simple, family-friendly, and perfect for nights when you want something that feels special but don’t have the energy for a complicated recipe.
These crispy pork medallions are wonderful with buttery mashed potatoes or roasted baby potatoes to soak up the juices, plus something green like steamed green beans, roasted broccoli, or a simple side salad. My family also loves them with buttered egg noodles or mac and cheese on busy nights. Add a little dish of ketchup, honey mustard, or ranch for dipping if you’ve got kids at the table, and maybe a squeeze of lemon or a spoonful of coleslaw on the side for the grown-ups.
Oven Baked 4-Ingredient Crispy Breaded Pork TenderloinServings: 4
Ingredients
1 1/2 to 2 pounds pork tenderloin, trimmed and sliced into 1-inch medallions
1 cup mayonnaise
2 cups seasoned dry breadcrumbs
1/2 cup grated Parmesan cheese (the dry, shaker-can style works great here)
Directions
Preheat your oven to 400°F (200°C). Lightly grease a 9x13-inch glass casserole dish or coat it with nonstick spray. Using a glass dish helps you see that beautiful golden crust forming along the edges.
Trim any silver skin from the pork tenderloin, then slice it into 1-inch thick medallions. Pat the pieces dry with paper towels so the coating sticks better and gets crispier.
In a shallow bowl, stir together the mayonnaise and Parmesan cheese until smooth and well combined. This is the secret my sister taught me—mayo and Parmesan make a sticky, flavorful “glue” that gives you that thick, crunchy crust without eggs or extra seasonings.
Pour the seasoned dry breadcrumbs into a second shallow bowl. If they seem packed, fluff them with a fork so they coat more evenly.
Working with one pork medallion at a time, coat both sides in the mayo-Parmesan mixture, letting any big excess drip back into the bowl. You want a nice, even layer, but not huge clumps.
Press the coated pork medallion firmly into the breadcrumbs, turning to cover all sides. Press a little so the crumbs really stick and form a thick layer. Place the breaded piece into the prepared glass casserole dish. Repeat with the remaining pork, nestling the medallions in a single snug layer. It’s fine if they touch slightly, just don’t stack them.
Once all the pork is arranged in the dish, lightly sprinkle any remaining breadcrumbs over the tops to fill in thin spots. This helps create that extra crunchy, golden-brown crust you see in the pan.
Bake, uncovered, in the preheated oven for 20 to 25 minutes, or until the pork is cooked through (an instant-read thermometer should read 145°F/63°C in the center of a thicker piece) and the breadcrumb coating is deep golden brown and crisp. If your oven runs cool or the crumbs aren’t browning, you can move the dish to a higher rack for the last 3 to 5 minutes.
Let the pork rest in the hot dish for about 5 minutes before serving. The juices settle back into the meat, and the coating firms up even more, giving you those juicy medallions with a thick, shatteringly crunchy crust right in the glass casserole dish.
Variations & Tips
For picky eaters, you can swap seasoned breadcrumbs for plain and stir a little extra Parmesan into the mayo mixture instead, keeping the flavor simple and cheesy. If your family likes a bit of zip, add 1 to 2 teaspoons of Dijon mustard or a pinch of garlic powder to the mayo-Parmesan mixture before coating the pork. You can also use this same 4-ingredient method on chicken tenders or boneless, skinless chicken thighs—just adjust the baking time until the chicken reaches 165°F in the center. To make cleanup easier, line the glass casserole dish with parchment and lightly grease the parchment before adding the pork. For a lighter option, use light mayonnaise and reduce the Parmesan slightly; the crust will still get nicely crisp. If you want extra crunch, spray the tops of the breaded medallions lightly with cooking spray before baking, or broil for 1 to 2 minutes at the end, watching closely so the crumbs don’t burn. Leftovers reheat well in the oven or air fryer at 350°F until warmed through and re-crisped—perfect for next-day sandwiches or slicing over a salad.
