Gluten-Free Dumpling Filling with Ground Beef & Mushrooms (Mild)

Ingredients

• 1 lb ground beef (80–90% lean works best)
• 8 oz cremini or white mushrooms, very finely chopped (or pulsed in a food processor)
• 3 scallions, finely sliced (white and green separated)
• 3 cloves garlic, grated or minced
• 1 tbsp fresh ginger, grated
• 2 tbsp gluten-free tamari
• 1 tbsp toasted sesame oil
• 1 tbsp rice vinegar
• 1 tbsp cornstarch (or potato starch)
• 1/2 tsp kosher salt (start with 1/4 tsp if your tamari is very salty)
• 1/4 tsp black pepper
• 1–2 tsp sugar or honey (optional, for a slightly sweet finish)
• 2 tbsp neutral oil (avocado/canola)
• 1/4 cup packed Thai basil or regular basil, thinly sliced (optional but great)
• 1–3 tbsp water or beef broth, as needed (only if mixture feels dry)

Instructions

1. Brown the beef. Heat a skillet over medium-high and add 1 tbsp neutral oil. Add the ground beef and cook, breaking it up, until it loses its pink color and you see browned edges and some fond on the pan, 5–7 minutes. If there’s lots of fat, spoon off all but 1–2 tbsp.
2. Cook down the mushrooms (key for non-watery dumplings). Add the chopped mushrooms and the scallion whites. Cook 5–8 minutes, stirring, until the mushrooms have given up their liquid and the pan looks mostly dry; the mixture should smell deeply savory, not steamy.
3. Aromatics + seasoning. Add garlic and ginger and cook 30–45 seconds until very fragrant. Stir in tamari, sesame oil, and rice vinegar; scrape up any browned bits.
4. Bind it. Sprinkle cornstarch over the mixture and stir well for 30 seconds so it disappears. Add salt, pepper, and (if using) sugar/honey. The filling should look glossy and hold together when pressed with a spoon.
5. Cool before wrapping. Spread the filling on a plate/tray to cool to room temp (10–15 minutes). Stir in scallion greens and (optional) basil once cooled.
6. Test a teaspoon. Pan-sear a small spoonful until cooked through. Taste: you want it savory, aromatic, and juicy—but not wet. If it tastes flat, add 1–2 tsp tamari; if it tastes heavy, add 1 tsp vinegar.
7. Dumplings/potstickers: Fill wrappers (gluten-free if needed) and cook by your preferred method. This filling is fully cooked, so you’re mainly cooking the wrapper and heating through.
8. Lettuce wraps: Warm the filling and spoon into butter lettuce; add cucumber and a squeeze of lime.

Notes

Wrappers: Use gluten-free dumpling wrappers if you’re avoiding wheat, or use the filling in lettuce wraps/rice paper. Make-ahead: Refrigerate up to 3 days; it firms as it chills (great for wrapping). Freeze: Portion filling and freeze up to 2 months; thaw overnight in the fridge. Heat level: Kept mild—skip chili; if you ever want gentle warmth, add a pinch of white pepper or a tiny amount of grated fresh turmeric.