Cook the lentils in enough salted water for 35 to 40 minutes, drain and cool. In the meantime, clean and slice the spring onions, peel and chop the garlic. Rinse and quarter the cherry tomatoes.
Mix the mustard with honey, red wine, vinegar, salt and pepper, gradually pour in three tablespoons of olive oil and stir the whole to a smooth sauce.
Mix the lentils with the garlic, tomatoes, onions and the marinade, divide them evenly on two plates and let them marinate for ten minutes.
In the meantime, pluck the parsley from the stems and chop the leaves. Heat the remaining oil in a frying pan, fry tuna steaks for just under five min on each side over medium heat, season with salt, season with pepper and serve on the lentil salad. Garnish with parsley.
Tip: You can find Umbrian mountain lentils in the deli section or possibly in an Italian supermarket. Otherwise, use red lentils, then the cooking time is reduced to about 15 min.
Our tip: Use high-quality red wine for a particularly fine taste!