Allow the cream cheese to come to room temperature (let it stand about 30 minutes unrefrigerated or see the tips above). Beat the cream cheese in a stand mixer or with an electric hand mixer on medium speed until smooth, about 30 seconds.
Add the shredded cheddar cheese, green onions (with 1 tablespoon finely chopped greens reserved), Worcestershire sauce, hot sauce, garlic powder, smoked paprika, dried dill and kosher salt. Mix on low speed until combined, scraping the bowl as necessary.
Scoop the cheese onto plastic wrap. Wrap the cheese in the plastic and form it into a ball shape. Refrigerate 1 hour.
Meanwhile, toast the pecans: place them in a dry skillet (no oil) over medium heat. Heat, shaking the pan and stirring often, until the nuts are fragrant and slightly darker brown, about 4 to 5 minutes. Remove immediately from the heat and transfer to a cutting board. Finely chop the pecans and place them in a shallow bowl. Stir in the reserved chopped onion greens.
Gently roll the cheese ball in pecan mixture, lightly pressing so that the entire ball is coated. Rest at room temperature 30 minutes before serving. Store refrigerated for up to 2 weeks or frozen for up to 1 month (wrapped tightly in plastic wrap and then foil).