Loaded Gnocchi and Cheese

Name: Loaded Gnocchi and Cheese
Prep time: 30 min
Cook time: 30 min
Total time: 1 h
Cuisine: American, Canadian
Ingredients: 4 cups potato gnocchi (frozen or shelf-stable, boiled/cooked per package instructions); 1/4 cup butter; 1/3 cup all-purpose flour; 3 cups whole milk (3% b.f.); 2 cups old/sharp cheddar cheese (freshly shredded, plus more for topping); 1/2 tsp kosher salt (less is using fine table salt); Freshly ground pepper; 2 Tbsp green onion (finely chopped); 1/8 tsp garlic powder; 1/3 cup sour cream (*see Notes); Diced green onion; Cooked bacon crumbles