Preheat a nonstick medium saucepan or large nonstick skillet over medium heat. Add the onion and sauté for 2-3 minutes or until the onions are soft and begin to just turn brown. Add the garlic powder, stir, and cook for 10-15 seconds.
Add the rice, lentils, water (vegetable broth), and salt and pepper. Increase to medium-high heat. Bring everything to a boil then lower heat, cover, and simmer.
Cook for 45 minutes or until the rice and lentils are tender and the liquid has been absorbed. Keep in mind, depending on your appliance or cookware, the cook time may vary.
Remove from the heat and let sit for 10 minutes before serving.
