Preheat the oven to 425 degrees F.
Remove the tails and tops of the onions.
Peel the onions.
Cut into rings, about 3/4 inch thick.
Place on a baking sheet covered with tin foil and drizzle with olive oil then sprinkle with salt and pepper.
Bake in the oven for 40 minutes until the onions are cooked and golden brown on top. If they are not taking on much color put under the broiler for a minute or two.
While the onions are cooking, mix the salsa ingredients together in a small bowl.
Chop the parsley.
Wash and tear the arugula into bite sized pieces.
Mix the arugula and parsley together.
Top the arugula mixture with the warm onions, goat cheese and half the salsa, gently toss keeping the onions intact.
Serve with the remaining salsa. Enjoy!