Directions

• Slice a small plank off one side of each sweet potato lengthwise. This will act as a base, so you can cut the sweet potato into toast slices easily. Prop the sweet potato on the flat side you created and slice each potato into planks about ¼ inch thick.
  For toaster preparation, pop the sweet potato planks in the toaster and toast until tender. This may take a few times, depending on your toaster.
• For oven preparation, preheat your oven to 350° F. Lay the sweet potato planks on a baking sheet and spray with cooking spray. Roast for 6-7 minutes per side, until they are easily pierced with a fork.
  When they’re done toasting, lay the sweet potato toasts on plates and top with sliced avocado. Mash the avocado gently with a fork. Sprinkle with diced walnuts, red pepper flakes and drizzle with olive oil. Top with flaky salt.

Source: Crowded Kitchen on behalf of California Walnuts