Bring a pot of water to a boil and add the chicken breasts with the chicken seasoning. Simmer for 15-18 minutes until the internal temperature reaches 165°F and the chicken is cooked through. Remove the chicken to a cutting board and let it cool slightly for 2-3 minutes until it's cool enough to handle. Using two forks, shred the chicken into bite-sized pieces by pulling the forks in opposite directions through the meat. Set aside in a large mixing bowl.

In a small bowl, whisk together the oregano, garlic powder, paprika, onion powder, salt, and black pepper to create a unified seasoning blend that will distribute evenly throughout the salad. In a separate bowl or blender, combine the mayonnaise and cottage cheese, stirring or blending until well incorporated and smooth. I like to blend this mixture because it creates a creamier, more cohesive base than just stirring together—the cottage cheese gets lighter and better distributed.

While the chicken is cooling, finely dice the celery into 1/4-inch pieces for consistent texture throughout the salad. Cut the grapes in half to prevent them from rolling around when eating. Chop the fresh parsley finely. Have all three ingredients ready to add to the salad.

Pour the cottage cheese and mayonnaise mixture from Step 2 over the shredded chicken in the large bowl. Add the celery, grapes, and fresh parsley from Step 3, then sprinkle the seasoning blend from Step 2 over everything. Pour the lemon juice over the mixture. Using a spatula or large spoon, fold everything together gently but thoroughly until all ingredients are well coated and evenly distributed. I always add the lemon juice at the end because it brightens the flavors and prevents the chicken from absorbing too much moisture while you're mixing—this keeps the salad from getting watery.

Taste the salad and adjust the seasoning with additional salt, pepper, or lemon juice as needed. Serve immediately over greens, on bread, or as a standalone salad. The chicken salad can also be refrigerated for up to 3 days, though it's best enjoyed within the first day for optimal texture.