Heat the olive oil and sauté the diced red onion and minced garlic. This releases their aromas, laying a flavorful foundation for the dish.
Next, add the oats and rinsed red lentils, along with water or vegetable broth. Give everything a good stir until well combined. Bring everything to a boil, then lower the heat and simmer until the lentils are tender but not mushy.
Once cooked, add salt and pepper to taste. Divide the oatmeal among your bowls, then top each bowl with your favorite garnishes. Happy eating!