Combine the onion, celery, Old Bay Seasoning, red bell pepper, and parsley in a large mixing bowl. Add lemon juice and eggs into the mixture and whisk until blended. Add the mayonnaise until mixture is blended. Let stand two minutes
Add half the crab meat and bread crumbs and mix with hands until evenly mixed. Add remaining crab meat and bread crumbs and combine evenly.
Form crab cakes that are 2” in diameter and ½” thick, about 2 ounces in weight for portion. Pat each side of the crab cake with panko bread crumbs.
Spray pan or griddle with vegetable cooking spray. Brown the crab cakes turning once. Place crab cakes on baking sheet that has been sprayed with vegetable cooking spray. Finish cooking in 375 degree oven for 10-15 minutes.