Did you know that lentils are a great source of protein? This vegetarian picadillo tostadas recipe will provide you with all the nutrients you need, but without the need to eat meat. Additionally, due to their neutral flavor, lentils can be prepared in various ways and are a quick, practical, and nutritious alternative to include plant-based protein in your meals. To make these tostadas easier and faster, cook the lentils and peas beforehand.