Brush the zucchini strips with olive oil n both sides.
Lay out two zucchini strips. Place a few onion rings in the center of one strip. Lay a few onion pieces on top. Place the feta on top. Top with the herbed sun dried tomatoes.
Flip one side of the zucchini strip over, then the other side on top.
Lay the entire package on top of another zucchini strip, crosswise. Flip one side of the zucchini strip over, then the other side on top. Secure with a toothpick through the top. Replace the package on the baking sheet.
Return the baking sheet to the oven for 5 minutes at 350 degrees F until the cheese has softened.