Season the chuck flap with salt and pepper.
Cook the chuck flap in a sous vide machine at 55°C for 2 hours.
Remove the cooked chuck flap and sear the surface in a hot pan.
Slice the chuck flap thinly.
Wash and prepare salad greens, tomatoes, cucumbers, and other vegetables.
Place the salad greens on a plate and top with the sliced chuck flap.
Drizzle with a dressing made of olive oil, balsamic vinegar, salt, and pepper.