What I like about this kind of recipe is that it is extremely flexible. You can keep the base and make meatballs, burgers, or stuff it into vegetables.
In a skillet, heat olive oil over medium high heat. Add onion and mushrooms. Cook until the onion has begun to turn a little golden, about 10 minutes. Add the garlic in the last minute of cooking. Remove from heat and place in a large bowl.
Grate the carrots and add them to the bowl with the onion, garlic, and mushrooms.
Blend the lentils in a food processor for a few seconds. They must have a coarse texture. Transfer the lentils into a large bowl.
Coarsely grind the sunflower seeds in the food processor. They must have a coarse texture. Transfer to the large bowl with the other ingredients.
Add the rest of the ingredients to the bowl and mix well.
Place the mixture in a previously oiled muffin pan.
In a small bowl, mix ketchup, applesauce, balsamic vinegar, and maple syrup. Pour sauce evenly on the top of the Meatloaf.
Bake at 350 ° F for 40 minutes. Let stand for 10 minutes before serving.