Cook rice according to package directions; set aside. Cook rice a few days in advance, if desired.
In a microwave-safe bowl or plate, add red bell peppers, carrots and celery. Cook in microwave for 3-4 minutes, to soften.
Meanwhile, in blender, combine soy sauce, broth, peanut butter, lime juice, garlic, ginger, and crushed red pepper. Set Aside.
Coat a large, nonstick pan with cooking spray. Add ground turkey and cook until brown. Stir often to break up into a crumble. Add sauce, softened veggies and cook, stirring over low heat. Continue to cook and stir until everything is hot.
Stir in cooked brown rice and scallions. Cook 1 more minute, until thoroughly heated.
Divide among 4 plates or bowls. Any leftovers freeze great.