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Baked Parmesan Onion Rings (Keto-Friendly & Ultra-Crispy)

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  • Author: Evelyn
  • Prep Time: 10 minutes
  • Cook Time: 15–20 minutes
  • Total Time: 25–30 minutes
  • Yield: 6 servings
  • Category: Snack / Appetizer
  • Method: Baked
  • Cuisine: American

Description

Crispy, golden baked onion rings made with shredded Parmesan—no breadcrumbs or deep-frying, yet ultra‑crunchy and keto‑friendly.


Ingredients

  • 2 medium white onions, sliced into ¼‑inch thick rings
  • 2 cups shredded Parmesan cheese
  • Salt, to taste
  • Garlic powder, to taste
  • Paprika, to taste
  • Optional: Italian seasoning, to taste
  • Optional: Olive oil, for brushing

Instructions

  1. Preheat oven to 400 °F (200 °C) and line a baking sheet with parchment paper.
  2. Peel and slice onions into ¼‑inch thick rounds.
  3. For each ring, place about 1 tablespoon of shredded Parmesan onto the parchment and press into a flat circle slightly wider than the onion.
  4. Place an onion ring on each Parmesan circle.
  5. Top each ring with another tablespoon of Parmesan; press gently with a spoon to adhere.
  6. Season each with salt, garlic powder, and paprika (and Italian seasoning if using).
  7. Optionally brush with a little olive oil for extra browning.
  8. Bake 15–20 minutes, until cheese is deep golden brown and crispy.
  9. Let cool on the baking sheet for 10–15 minutes before serving to maximize crunch.

Notes

  • One serving ≈ 4–5 onion rings (depending on size and cheese used).
  • Cool fully before storing—keeps best in fridge up to 3–4 days in an airtight container with paper towel to absorb moisture.
  • Reheat in air fryer at 375 °F for 3–4 minutes, or oven/toaster oven at 375 °F for 5–7 minutes, for best texture.
  • Freezing is possible—flash‑freeze then store in freezer bag—but fresh yields best texture.
  • Use freshly shredded Parmesan for best melt and crunch; pre‑shredded varieties may not crisp as well.

Nutrition

  • Serving Size: ≈ 4–5 onion rings
  • Calories: 145 kcal
  • Sugar: 2 g
  • Fat: 9 g
  • Carbohydrates: 4 g
  • Fiber: 1 g
  • Protein: 12 g