
Air Fryer Stuffed Onions with Creamy Rice, Spinach and Smoked Cheese with Walnut Crust
Tender onion layers cooked in the air fryer and filled with a creamy mixture of rice, sautéed spinach, smoked cheese, and herbs, finished with a crunchy walnut and breadcrumb topping. An original vegetarian recipe that feels elegant and comforting.
Ingredients
- 4 units large white onions (peladas)
- 240 g cooked rice (preferiblemente cold or of the día anterior)
- 90 g fresh spinach (chopped en trozos large)
- 120 g shredded smoked cheese (tipo scamorza or gouda ahumado)
- 60 g cream cheese (at room temperature)
- 35 g chopped walnuts (for the crust)
- 30 g breadcrumbs (for the crust)
- 2 cloves garlic (finely chopped)
- 10 g fresh parsley (chopped)
- 2 g fresh thyme (solo the leaves)
- 30 ml olive oil (divided)
- 5 ml Dijon mustard (for dar profundidad)
- 2 g lemon zest (finely grated)
- 5 g salt (or to taste)
- 2 g black pepper (freshly ground)
- 500 ml water (for ablandar the cebollas)
Nutrition facts
per serving
Approximate nutritional information. Estimated from the recipe’s ingredients and amounts, using standard reference nutrition values. It may vary with brands, sizes and cooking method. For guidance only; not a substitute for medical or dietary advice.
Allergens
Instructions
- 1
Cut a small lid off the top of each onion and peel away the outer skin. Place the onions in a pot with the water and 1/2 teaspoon salt, bring to a boil, and cook for 8 minutes until just tender. Drain, let them cool enough to handle, and carefully separate the larger outer layers to make 12 to 16 onion “cups.” Finely chop the remaining onion centers.
- 2
Preheat the air fryer to 350 °F / 175 °C for 3 minutes.
- 3
Heat 1 tablespoon olive oil in a skillet over medium heat. Add the chopped onion centers and cook for 4 minutes. Stir in the garlic and cook 30 seconds more. Add the spinach and cook for 1 to 2 minutes until wilted. Remove from the heat.
- 4
In a bowl, combine the cooked rice, the sautéed spinach with onion and garlic, cream cheese, 90 g (3 oz) of the smoked cheese, parsley, thyme, Dijon mustard, lemon zest, 1/2 teaspoon salt, and black pepper. Mix until the filling is creamy and evenly combined.
- 5
Fill each onion cup with the rice mixture, pressing gently so it holds its shape. Arrange the stuffed onions in the air fryer basket in a single layer.
- 6
In a small bowl, mix the walnuts, breadcrumbs, the remaining tablespoon of olive oil, and the remaining smoked cheese. Sprinkle this crust over each stuffed onion.
- 7
Cook in the air fryer at 350 °F / 175 °C for 10 minutes. Then raise the temperature to 375 °F / 190 °C and cook for 7 minutes more, or until the tops are golden and crisp and the onions are tender.
- 8
Let rest for 2 minutes before serving. Finish with a little more parsley if desired and serve hot.
Chef tips
If some onion layers tear slightly, overlap them to create a sturdier cup. Cold rice works best because it absorbs the cheese without turning mushy.
Substitutions
You can replace the walnuts with sunflower seeds to avoid tree nuts, and use low-moisture mozzarella instead of smoked cheese. For a gluten-free version, use gluten-free breadcrumbs.
What I used to make it
Generic kitchen tools that work for this recipe. You don’t need to buy anything to make it.
Illustrative imageCosori Pro LE 5 Qt Air Fryer
Browning and baking with little oil
- Browns food with very little oil
- Handy for vegetables, chicken and reheating
- Check the basket capacity
Illustrative imageT-fal Ultimate Hard Anodized 12" Non-Stick Pan
Eggs, omelets and stir-fries
- Eggs and omelets that don’t stick
- Comfortable, sturdy handle
- Use wooden or silicone utensils
Illustrative imageVictorinox Fibrox Pro 8" Chef’s Knife
Chopping, slicing and cutting strips
- The knife I use most when cooking
- Chops, slices and cuts into strips
- Keep it sharp and hand-dry it
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