Creamy Avocado dip with walnuts, feta and sour cream

Name: Creamy Avocado dip with walnuts, feta and sour cream
Prep time: 10 min
Total time: 10 min
Cuisine: Mediterranean, European
Ingredients: 2 ripe avocados - I used hass avocados; 150 gr / 5 oz / ½ cups sour cream; 50 gr / 4oz / ½ cups feta cheese; 1-2 garlic cloves - minced; 1-2 tablespoons olive oil; 20-50 gr / 0.7 - 1.7 oz / ⅓ cups walnuts or to taste; salt and pepper to taste; lemon juice; dill