3 patty grilled onion relish Recipes

ground turkey, olive oil, salt and freshly ground pepper, thick) slices good quality rye bread, thick) slices gruyere, grilled onion relish , recipe follows

red onions, peeled and sliced into 1/4-inch thick slices, olive oil, balsamic vinegar, dijon mustard, salt & freshly ground black pepper, chopped fresh thyme leave, ground turkey, olive oil, salt & freshly ground black pepper, rye bread (1/4-inch thick ), gruyere*** cheese (1/4-inch thick )