Instructions
- Place the grated onion in a fine sieve or a clean kitchen towel and press out as much liquid as possible; a watery mixture will make patties that fall apart on the grill.
- In a large bowl, combine the ground beef, drained grated onion, grated tomato, garlic, breadcrumbs, egg, parsley, oregano, mint, vinegar, olive oil, salt, and pepper.
- Mix with your hands the way you would for keftedes: work the mixture firmly but briefly, just until everything is evenly distributed and it holds together when pressed. Overmixing will make the patties dense rather than tender.
- Pinch off a small piece and fry it in a hot pan for a minute on each side to taste for seasoning, then adjust the salt or herbs in the remaining mixture if needed.
- Cover the bowl and refrigerate for at least 20 minutes; this firms up the fat and makes the patties much easier to shape and stuff.
- Divide the mixture into 4 equal portions for feta-stuffed bifteki, or 6 smaller portions for plain patties.
- To stuff, flatten one portion in your palm, press a cube of feta into the center, then fold the meat up and around the cheese, pinching the seams closed so no filling is exposed. Reshape into a thick oval or round patty, about ¾ inch (2 cm) thick.
- Brush both sides of each patty lightly with olive oil.
- Grill over medium heat, or pan-fry in a lightly oiled skillet over medium-high heat, for about 5 to 6 minutes per side, turning only once the underside has developed good color and releases easily.
- Check for doneness by pressing gently or checking that juices run clear; an instant-read thermometer should read 160°F (71°C) at the center of the meat, away from the feta core.
- Let the bifteki rest for 3 to 4 minutes off the heat before serving, so the melted feta settles rather than spilling out the moment you cut in.
- Serve hot, plated alongside a generous pile of fries and tomato wedges, with lemon wedges and tzatziki on the side.
Tips for Success
- Squeezing the grated onion and tomato is the single most important step — skip it and the patties will steam instead of sear, and they'll be more likely to break apart.
- Chilling the shaped patties for 15 to 20 minutes before cooking firms the fat and helps them hold their shape on the grill, especially when stuffed with feta.
- Pinch the seams of stuffed bifteki closed firmly and avoid overfilling; a little feta goes a long way, and too much will force its way out during cooking.
- For a lighter, oven-baked version, arrange the patties on a tray with wedged potatoes tossed in olive oil, lemon juice, and oregano, and roast everything together at 400°F (200°C) for about 30 to 35 minutes.