01 - Bring a large pot of salted water to a rolling boil. Add pasta and cook according to package directions until al dente. Drain thoroughly in a colander, then rinse under cold running water to stop cooking and cool completely.
02 - In a large mixing bowl, whisk together olive oil, lemon juice, Dijon mustard, minced garlic, chopped parsley, dill, salt, and black pepper until emulsified.
03 - Add cooled pasta to the bowl with the dressing. Add cherry tomatoes, cucumber, red bell pepper, and spring onions. Toss gently to coat evenly with dressing.
04 - Fold in cottage cheese using a spatula, being careful not to break up the curds excessively. Mix until just evenly distributed throughout the salad.
05 - Taste and adjust seasoning with additional lemon juice, salt, or pepper as needed. Refrigerate for at least 15 minutes to allow flavors to meld before serving.