Preheat oven to 375 degrees F. Coat a large rimmed baking sheet with cooking spray (or see Loaf Pan Variation).Advertisement
Pulse bell pepper, mushrooms, water chestnuts, scallion whites and ginger in a food processor until finely chopped. (Or finely chop them with a knife.)
Heat oil in a large nonstick skillet over medium-high heat. Add the vegetables and cook, stirring occasionally, until tender and most of the liquid has evaporated, 5 to 10 minutes. Transfer to a large bowl and let cool for 10 minutes.
Add 2 chopped scallion greens, 2 tablespoons hoisin sauce and salt to the vegetables; stir to combine. Stir in egg and rice. Add ground turkey and pork and with clean hands gently knead the vegetable mixture into the meat; do not overmix. Pat the meat mixture into a loaf shape (about 12 by 5 inches) on the prepared baking sheet. Spread the remaining 3 tablespoons hoisin on top.
Bake the meatloaf until an instant-read thermometer inserted in the center registers 165 degrees F, about 45 minutes. Sprinkle with the remaining scallion greens. Let rest for 10 minutes before slicing.
Make Ahead Tip: Prepare through Step 3, cover and refrigerate for up to 1 day. Let stand at room temperature while oven preheats; bake until an instant-read thermometer registers 165°F, about 1 hour.
Tips: Look for hoisin sauce, a thick, dark brown, spicy-sweet sauce made from soybeans and a complex mix of spices, in the Asian section of most supermarkets. Try it in stir-fries and dipping sauces.
For perfectly cooked brown rice, use a pan with a tight-fitting lid, cook on your coolest (or simmer) burner and simmer the rice at the “lowest bubble.” One cup dry rice, cooked with 2 1/2 cups water, yields about 3 cups cooked rice. If you want to make a smaller batch (starting with less than 1 cup dry), we've found that smaller volumes of whole-grain rice are sometimes done in as little as 30 minutes and burn when cooked for the full recommended time of 50 minutes. Start checking a smaller batch after 30 minutes to make sure it doesn't burn.
Loaf Pan Variation: If you want a more uniform-shaped “loaf” you can bake your meatloaf in a 9-by-5-inch loaf pan instead of on a baking sheet. Coat the pan with cooking spray, pat the meatloaf mixture into the pan and cover with the topping. Bake for about 1 hour. Let stand for 10 minutes in the pan before slicing.
Easy cleanup: Recipes that require cooking spray can leave behind a sticky residue that can be hard to clean. To save time and keep your baking sheet looking fresh, line it with a layer of foil before you apply the cooking spray.
1 vegetable, 2 1/2 lean meat, 1/2 fat