Air Fryer Sourdough Discard Za'atar Lamb Meatball Bites

Name: Air Fryer Sourdough Discard Za'atar Lamb Meatball Bites
Prep time: 20 min
Cook time: 12 min
Total time: 32 min
Yield: 4 servings
Cuisine: Middle Eastern
Ingredients: 1 lb (450 g) ground lamb; ½ cup (120 ml) active sourdough discard, at room temperature; 3 tbsp (24 g) za'atar spice blend; ¼ cup (35 g) pine nuts, lightly toasted, cooled, roughly chopped; ¼ cup (12 g) fresh mint leaves, finely chopped; 2 cloves (10 g) garlic cloves, minced; 1 (50 g) large egg, lightly beaten; ¾ tsp (4½ g) kosher salt; ¼ tsp (½ g) freshly ground black pepper; 1 tbsp (15 ml) olive oil (optional); 1 tsp (5 ml) fresh lemon juice (optional)

From the MyKitchenBank Kitchen

Tender lamb meatballs studded with crispy sourdough discard, toasted pine nuts, and aromatic za'atar, finished in the air fryer for a golden exterior and juicy center. Fresh mint and a hint of garlic make these Middle Eastern–inspired bites irresistible as an appetizer or mezze addition. Perfect for using up sourdough starter discard.

Prep: 20 min
Cook: 12 min
Wait: 15 min
Total: 47 min
Makes: 24 meatball bites (6 per serving)

Save to My Kitchen Jump to recipe

Steps

Before you start

Preheat your air fryer to 375°F (190°C) for 5 minutes
Have sourdough discard at room temperature (actively fed within the last 4–8 hours, or unfed overnight is fine)
Toast pine nuts lightly in a dry skillet if they look pale, then set aside to cool
Line your air fryer basket with parchment paper or lightly oil it to prevent sticking

1
Toast and prep pine nuts
- Heat a small 8-inch (20 cm) skillet over medium heat for 1 minute.
- Add the 0.25 cup (35 g) pine nuts and toast, stirring frequently, for 3–4 minutes until fragrant and light golden.
- Transfer to a plate to cool completely (about 2 minutes), then roughly chop into small pieces so they don't roll out of the meatballs.
+ Show details− Hide details
Ready when: Pine nuts are light golden and fragrant
Tip: Watch closely—pine nuts burn quickly. If they darken, they'll taste bitter.
2
Combine meatball mixture
- In a medium bowl, add the 1 lb (450 g) ground lamb, 0.5 cup (120 ml) sourdough discard at room temperature, 3 tbsp (24 g) za'atar, cooled chopped pine nuts, 0.25 cup (12 g) fresh chopped mint, 2 minced garlic cloves, 1 beaten egg, 0.75 tsp (4.5 g) kosher salt, and 0.25 tsp (0.5 g) black pepper.
- Using your hands or a wooden spoon, mix gently until just combined—do not overwork, or the meatballs will be dense and tough.
- The mixture should be moist from the sourdough discard and hold together easily.
+ Show details− Hide details
Ready when: Mixture is evenly combined, moist, and holds together when squeezed
Tip: Overworking the meat releases myosin, making meatballs tough. Mix with a light hand—aim for a few vigorous folds, not thorough blending.
3
Form meatballs
- Divide the mixture into 24 equal portions (about 0.5 oz / 14 g each).
- Roll each portion gently between your palms into a compact ball roughly the size of a large grape or small walnut.
- If the mixture sticks, lightly dampen your hands with water.
- Arrange the formed meatballs on a plate or parchment paper, spacing them so they don't touch.
+ Show details− Hide details
Ready when: All 24 meatballs are rolled and evenly sized
Tip: Use a cookie dough scoop (1-tablespoon size) to portion evenly so they cook at the same rate. Even sizing prevents some from drying before others finish.
4
Preheat air fryerOven 375°F / 190°C
- Preheat your air fryer to 375°F (190°C) for 5 minutes.
- Line the basket with parchment paper or lightly brush it with olive oil to prevent sticking.
+ Show details− Hide details
Ready when: Air fryer beeps or display shows ready
Tip: Parchment paper makes cleanup easy and lets moisture escape from underneath the meatballs. If using oil instead, a light hand prevents them from getting greasy.
5
Air fry meatballsOven 375°F / 190°C
- Arrange the 24 meatballs in the preheated air fryer basket in a single layer, leaving a small gap between each one for air circulation.
- Do not overcrowd; if your basket is small, fry in two batches.
- Air fry at 375°F (190°C) for 10–12 minutes, shaking the basket gently halfway through (at the 5–6 minute mark) to ensure even browning.
- The meatballs are done when they are golden brown on the outside and a meat thermometer inserted into the thickest ball reads 160°F (71°C) internally, or they feel firm to a light touch and break apart easily when cut.
+ Show details− Hide details
Ready when: Golden brown exterior, internal temperature 160°F (71°C), meatballs feel firm
Tip: Shake the basket gently—a hard shake can break apart softer meatballs. If your air fryer runs hot, check at 9 minutes to avoid overcooking.
6
Rest and finish
- Transfer the cooked meatballs to a serving platter and let them rest for 3–5 minutes before serving.
- If using, drizzle with 1 tsp (5 ml) fresh lemon juice and scatter a pinch of fresh mint on top for garnish.
+ Show details− Hide details
Ready when: Meatballs have cooled slightly and are ready to eat
Tip: Resting prevents the meatballs from breaking apart when you bite into them. The sourdough discard keeps them moist even after cooling.

Good to know

Tips

Sourdough discard adds both moisture and tang to the meatballs, preventing them from drying out in the air fryer. Use discard that's been fed 4–8 hours before, or even overnight unfed discard—the slight fermentation adds depth.
Za'atar's sesame and sumac shine best when paired with fresh mint and lemon; these bright flavors are classic in Middle Eastern cooking and complement the earthiness of lamb perfectly.
Air fryer sizes vary; if your basket is small (2-quart / 2-liter capacity), fry in two batches rather than crowding, which forces steam and prevents browning.
For a crisper exterior, lightly brush the formed meatballs with olive oil before air frying, but this is optional—they brown nicely on their own thanks to the lamb's natural fat and the sourdough discard's starches.

Make ahead

Prepare and shape the meatballs up to 24 hours in advance. Cover the platter of formed meatballs with plastic wrap and refrigerate. Air fry directly from the fridge, adding 2–3 minutes to the cook time. Alternatively, freeze shaped meatballs on a sheet pan, then transfer to a freezer bag for up to 3 months; air fry from frozen at 375°F (190°C) for 14–16 minutes, shaking halfway through.

Storage & reheating

Room temperature (in an airtight container): up to 2 hours. Refrigerator (in an airtight container): up to 4 days. Reheat gently in a 325°F (160°C) air fryer for 5–6 minutes until warmed through. Freezer: cooked meatballs last up to 3 months in a freezer bag; reheat from frozen at 350°F (175°C) for 8–10 minutes.

Substitutions

ground lamb → ground beef or ground turkey. Ground beef will give a richer, more traditional meatball; turkey will be leaner but slightly drier—add an extra tablespoon of sourdough discard if using turkey to compensate for moisture.
active sourdough discard → panko breadcrumbs mixed with 1 tbsp water and 1 tbsp yogurt. This mimics the binding and moisture of sourdough discard but loses the subtle tangy flavor. Use the same volume (0.5 cup / 120 ml mixed together).
za'atar spice blend → 2 tbsp sumac, 1 tbsp dried oregano, 1 tbsp dried thyme. Homemade za'atar blend works if store-bought is unavailable. Mix these dried herbs with a pinch of salt for a similar bright, herbaceous profile.
pine nuts → chopped pistachios, walnuts, or almonds. Pistachios add a different flavor but work well; walnuts are earthier and slightly bitter—toast them to mellow the flavor.