Ingredient:

• 1 tablespoon vegetable oil, or as needed
• 1 pound kielbasa (Polish) sausage, halved lengthwise and sliced
• ½ sweet onion (such as Vidalia®), diced
• 6 miniature multi-colored sweet peppers, diced
• 1 teaspoon dried oregano
• 1 teaspoon dried thyme
• ½ teaspoon cayenne pepper
• ¼ teaspoon celery salt
• 1 pinch red pepper flakes
• 1 cup quinoa
• 2 cups chicken broth
• ½ cup marinara sauce