Add the minced garlic, grated ginger, and the white parts of the green onions. Cook for 1 minute until fragrant.
Add the diced red bell pepper and cook for 3 minutes. Then add the frozen peas and carrots, and cook until vegetables are tender.
Push the vegetables to one side of the skillet. Add the cooked brown rice to the other side, breaking up any clumps with a spatula.