In a medium saucepan, combine lentils and water or broth. Bring to a boil, then reduce heat to a simmer. Cook for about 20–25 minutes or until the lentils are tender.
Season with salt to taste.
In another saucepan, combine brown rice and water. Bring to a boil, then reduce heat to low and cover. Cook for about 20–25 minutes or until the rice is tender and fluffy. Season with salt to taste.
Heat olive oil in a skillet over medium heat. Add minced garlic and cook for 1 minute until fragrant. Add sliced carrots and cook for about 5–7 minutes or until they are tender and slightly caramelized. Season with salt, pepper, and any additional spices (like cumin or paprika).
Slice the cucumber and avocado and halve the cherry tomatoes. In a small bowl, whisk together olive oil, lemon juice, salt, and pepper for the dressing. Add a pinch of sumac or za’atar if desired.
Divide cooked brown rice into bowls. Add a scoop of cooked lentils next to the rice. Arrange sautéed carrots alongside the lentils. Add sliced cucumber and cherry tomatoes next to the carrots or rice. Add the pepperoncini peppers and avocado slices.
Drizzle with the Lemon Dressing and Garnish: Drizzle the lemon dressing over the bowl and garnish with chopped parsley or cilantro.