Turkey-Spinach Burgers with Pepperoncini Sauce

Turkey burger on a rustic wooden table background
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Prep Time:
45 min prep time
Serves 4
Recipe Source:


  • 2 Tbsp extra-virgin olive oil, divided, plus olive oil cooking spray
  • 12 cup finely chopped onion
  • 5 oz baby spinach
  • Kosher salt and freshly ground black pepper
  • 14 cup plain nonfat Greek yogurt
  • 14 cup low-fat mayonnaise
  • 2 Tbsp minced seeded pepperoncini
  • 1 Tbsp liquid from the pepperoncini jar
  • 1 to 2 tsp fresh lemon juice or to taste
  • 1 tsp minced garlic
  • 3 oz crumbled feta cheese
  • 2 Tbsp chopped fresh oregano
  • 1 lb ground turkey
  • 4 whole-wheat hamburger buns, toasted
  • Lettuce and sliced tomatoes for garnish


  1. Heat 1 tablespoon of the oil in a skillet over medium heat. Add onion, and cook, stirring occasionally, until golden brown, about 8 minutes. Increase heat to medium-high, add remaining 1 tablespoon oil and spinach, and cook, stirring, until spinach is wilted. Season with salt and pepper and transfer mixture to a bowl. Chill in refrigerator until cooled to room temperature.
  2. Meanwhile, combine yogurt, mayonnaise, pepperoncini, pepperoncini liquid, lemon juice, garlic, and salt and pepper to taste in a small bowl and set aside.
  3. Preheat grill to medium. Once spinach has cooled, remove it from refrigerator and add feta, oregano, ground turkey, 14 teaspoon salt, and 14 teaspoon pepper. Mix just until combined and shape into 4 patties, each about 12 inch thick.
  4. Spray burgers lightly with cooking spray, and then grill over medium heat until just cooked through, about 6 minutes per side. Spread some yogurt sauce on bottom half of each bun, and then top with lettuce and tomato slices and a burger.
  5. Spoon remaining sauce over burgers and top with remaining bun halves. Serve immediately.

Nutrition Info

474 Calories, 31 g Protein, 34 g Carbohydrates, 6 g Fiber, 26 g Total fat (7 g sat, 9 g mono, 4 g poly), 947 mg Sodium, ★★★★★ Manganese, ★★★★ Selenium, ★★ Vitamin B2 (riboflavin), K, Calcium, Iron, Phosphorus, Zinc, Vitamin A, B1 (thiamine), B3 (niacin), B6, B12, Biotin, C, E, Folate, Pantothenic acid, Copper, Magnesium