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Air fryer keto green beans with tender crisp green beans coated in a savory garlic and parmesan seasoning, served as a quick low carb side dish with a wooden spoon.
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Air Fryer Keto Green Beans - Crisp, Garlicky, and Ready in Minutes

Prep Time10 minutes
Cook Time10 minutes
Total Time20 minutes
Servings: 4 servings

Ingredients

  • 1 pound fresh green beans, trimmed (ends snapped off)
  • 1–1.5 tablespoons avocado oil or olive oil
  • 2–3 cloves garlic, minced (or 1 teaspoon garlic powder)
  • 1/2 teaspoon kosher salt, plus more to taste
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon red pepper flakes (optional, for heat)
  • 1/2 teaspoon onion powder (optional)
  • 1 teaspoon lemon zest
  • 1 tablespoon fresh lemon juice
  • 2 tablespoons grated parmesan (optional, for finishing)
  • 1 tablespoon butter (optional, for extra richness)

Instructions

  • Preheat the air fryer: Set to 380°F (193°C). Preheating helps the beans sear right away for better browning.
  • Prep the beans: Rinse and pat very dry. Moisture causes steaming, so drying is key for crisp edges.
  • Season: In a large bowl, toss green beans with oil, garlic, salt, pepper, red pepper flakes, onion powder, and lemon zest. Coat evenly.
  • Air fry in a single layer: Add beans to the basket, spreading them out. Slight overlap is fine, but don’t overcrowd.
  • Cook: Air fry for 8–10 minutes, shaking the basket halfway. For extra char, go 11–12 minutes. You want tender-crisp with browning.
  • Finish: Transfer beans to a bowl. Toss with lemon juice. If using, add butter to melt and parmesan to coat. Taste and adjust salt.
  • Serve: Plate hot. They should be bright, garlicky, and lightly zesty with a little heat.