Things to Put on Salad to Make it More Fattening

Tell me your favorite salad toppers. We're trying to eat more healthfully, and if I have to eat plain lettuce salads, I will die.
Here are mine:
Avocado
Mushrooms
Grape Tomatoes
Craisins and dried fruit of any kind
Almonds
Honey-Roasted Peanuts
Sunflower Seeds
Feta Cheese
Bacon
Honey-Mustard Pretzels
Cottage Cheese
Chex Mix
Tuna Salad
Sugar Snap Peas
Pasta Salad (Suddenly Salad Classic is the BEST)
Pesto
Fresh Basil
Wonder Roast (rotisserie chicken)
Tortilla chips
Salsa
Yellow and Orange Peppers
Mozarella - the kind you buy in chunks or balls

Greek yogurt