For the ostrich burger, first wash the ostrich fillet and pat dry. For the marinade, mix olive oil with lemon juice. Strip the rosemary needles and add to the marinade with the bay leaves. Peel and finely chop the garlic cloves and add to the marinade as well.
Place the meat in a large enough freezer bag and add the marinade. Seal the bag tightly and let the meat marinate overnight.
Drain the meat well and pat dry, then salt and pepper it. Grill the meat for about 8 minutes, turning once or twice.
For the toppings, toast the pine nuts in a pan without fat until golden brown. Clean the frisée lettuce, wash, shake dry and pluck into bite-sized pieces. Mix a dressing of balsamic vinegar, oil, mustard and honey and mix with the salad. Cut figs into slices. Cut goat cheese once horizontally.
Place one fillet on each of the bottom halves of the rolls. Spread marinated lettuce on top. Place fig slices in a fan shape, arrange two cheese slices on top of each. Sprinkle with pine nuts. Place the second half of the bun on top and secure the ostrich burgers with a wooden stick on each.