I make red lentils with portobellos and balsamic vinegar--it's very tasty. There's only 3 of us so your quantities would vary based on family size but it's basically 1 cup red lentils, 2 cups vegetable stock, one small can diced tomato, pinch dried rosemary, 3 thinly sliced portobello mushrooms. Cook it til the lentils are tender and at the end add 1-2 tblspoons of balsamic and then let it cook for another two or three minutes. DD is five and she loves this. It's not the prettiest dish but it has great flavor. I serve it with couscous or quinoa.