Step 1 In a large bowl, crumble the ground turkey along with the chopped red onion, garlic, salt, pepper, crushed red pepper flakes, basil and oregano.
Step 2 In a medium bowl, beat the egg. Beat in the pasta sauce and olive oil. Pour the sauce mixture over the seasoned turkey and mix to combine.
Step 3Mix in the sun-dried tomatoes, bread crumbs and one-third cup of the cheese, mixing gently by hand until all the ingredients are thoroughly combined.
Step 4Divide the mixture and form 6 patties, coating them with the remaining cheese. Set aside to rest briefly. The patties can be assembled up to one day in advance, covered and refrigerated until ready to grill; remove the burgers from the refrigerator 15 minutes prior to cooking to temper slightly.