Rinse the brown rice under cold water until the water runs clear. In a medium pot, combine the rice with 4 cups of water and a pinch of salt. Bring to a boil, reduce to a simmer, cover, and cook for about 40-45 minutes until tender. Fluff with a fork and set aside.
In a large skillet, heat olive oil over medium-high heat. Once hot, add the diced chicken pieces. Season with salt and pepper. Cook until the chicken is browned and fully cooked through, about 7-10 minutes.
Pour the teriyaki sauce over the cooked chicken in the skillet. Stir well to coat all the pieces and cook for an additional 2-3 minutes, allowing the sauce to thicken slightly.
In a separate pan, sauté broccoli florets, sliced red bell pepper, and julienned carrots over medium heat for about 5-7 minutes until they are vibrant and slightly tender but still crisp.
In meal prep containers (or bowls), portion out the cooked brown rice evenly. Top with the teriyaki chicken and the sautéed vegetables.
Sprinkle each bowl with sesame seeds and sliced green onions for an added crunch and flavor.
Let the bowls cool completely before sealing with lids. Store in the refrigerator for up to 5 days.
Notes
For an appealing look, layer the rice, chicken, and vegetables neatly in the containers, and use colorful veggies to create a vibrant dish.