Boil your pasta according to package instructions until al dente. Drain and rinse under cold water to stop cooking and cool it down for the salad.
While the pasta cooks, boil the eggs for about 10 minutes. Once done, peel and chop them finely for easy mixing.
Blend cottage cheese, Greek yogurt, beans, garlic, and mustard in a food processor until smooth. This makes a creamy, protein-rich base for the salad.
In a large bowl, mix the pasta, tuna, chopped eggs, and all vegetables. Pour over the dressing and stir well until evenly coated.
Refrigerate for 15–20 minutes before serving to let flavors meld. Garnish with fresh dill or a sprinkle of paprika for a vibrant look.