Fry pine nuts in a dry pan. Wash and dry the lettuce leaves.
Prepare the dressing: mix 1 tablespoon of olive oil with 1 tablespoon of lemon juice, season with salt and pepper.
Wash the liver, dry it, and cut it. Fry in 2 tablespoons of olive oil. The heat should be higher than average, fry quickly, for 3 minutes, so that the liver remains soft, not over-dry.
Collect the salad: put lettuce leaves, tomatoes, avocado, liver on plates, pour the dressing, sprinkle with pine nuts, decorate with balsamic cream.