Persian Lentil Soup - Mother in law's recipe

Name: Persian Lentil Soup - Mother in law's recipe
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Cuisine: Middle Eastern
Ingredients: 1 cup of green lentils - washed and strained; 1 medium sized onion - cut in small dices; 1 potato - cut in medium dice; 3 cloves of garlic - grated; 2 tbsp tomato paste - all natural; 1/4 tsp turmeric powder; 2 tbsp olive oil; 1 tsp of salt; 1/4 tsp of black pepper; 4 cups of water