Roast Beef with balsamic

4 cups of cold cooked london broil beef or 4 cups flank steaks, thinly sliced and julienned 1 small red onion , thinly sliced 6 sun-dried tomatoes , julienned[...]

3 red onions , cut into 8 wedges 7 tablespoons extra virgin olive oil 1/4 cup balsamic vinegar 1 cup mayonnaise 1/4 cup chopped fresh basil 1 1/2 tablespoons[...]