Cook the macaroni according to the directions on the box. Die up the other ingredients while the pasta cooks.
In a large mixing bowl add the cooked macaroni, drained tuna fish, sliced grape tomatoes, peas, diced red onions, and celery. Set aside.
To make the dressing, in a medium-sized mixing bowl, whisk together the remaining ingredients, mayonnaise, sour cream, red wine vinegar, Dijon mustard, salt, black pepper, dried dill, and celery salt. Taste the salad for seasoning, if needed adjust any seasonings.
Pour the dressing over the macaroni and combine well. For best results, cover with plastic wrap, refrigerate to combine flavors for at least 30 minutes up to overnight.
To serve, optional, garnish with chopped fresh dill and a squeeze of lemon juice before serving.
Notes
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Note 1: We use frozen peas and run cold water of the peas to defrost them before adding to the salad. Note 2: This recipe serves 6 for the main course or 8 as a side dish. Storage and make ahead: This can be made one day ahead and stored in a covered, airtight container in the refrigerator. I am not a registered dietician, I do my best to provide the most accurate nutritional values. Any nutritional data I provide is an approximation. Actual dietary information can vary based on ingredients and portion sizes