Sunny Black Bean Burgers - Jazzy Vegetarian - Vegan and Delicious!

Ingredients

• ½ cup roasted and salted sunflower seeds
• ½ cup chopped walnut halves
• 1 cup lightly packed, fresh whole-grain bread crumbs (see note)
• 2 teaspoons extra-virgin olive oil, plus more as needed
• 1 can (15 to 16 ounces) black beans, drained and rinsed
• 5 tablespoons marinara sauce, plus more as needed
• 3 tablespoons minced fresh onion
• 1/2 teaspoon garlic powder
• 1/2 teaspoon Italian seasoning blend