Cook the bacon in a skillet over medium heat until crisp, 6–8 minutes. Drain, cool, and crumble.
Toast the slivered almonds in a dry skillet over medium heat until fragrant, 2–3 minutes. Let cool.
Whisk the mayonnaise, Worcestershire, garlic powder, cayenne, black pepper, and salt in a large bowl.
Fold in the shredded cheddar, green onions, crumbled bacon, and toasted almonds until evenly coated.
Chill for 15–20 minutes to let flavors mingle, if time allows.
Serve in a bowl topped with extra onions, alongside crackers, chips, or crisp veggies.