seared flank steak & spinach flatbreads recipe from organicgirl

Ingredients

• 2 packed cups organicgirl© POWERHOUSE SPINACH BLEND , plus more for topping
• 8 ounces flank steak
• ¾ teaspoon fine sea salt, divided
• ¼ teaspoon black pepper
• 1 tablespoon preferred vegetable oil
• ½ cup grated parmesan (2 ounces), plus more for serving
• ⠓ cup toasted walnuts
• 1 garlic clove, roughly chopped
• ½ cup pesto
• 2 tablespoons olive oil, divided
• 1 pound prepared pizza dough