Prepare the Dressing: If making homemade Big Mac sauce, whisk together mayonnaise, ketchup, mustard, diced pickles, garlic powder, onion powder, salt, and pepper in a small bowl. Set aside to let flavors meld.
Brown the Ground Beef: Heat olive oil in a skillet over medium-high heat. Add ground beef, seasoning with salt and pepper. Cook for 7-8 minutes, breaking the meat apart until browned and fully cooked.
Chop and Prep the Veggies: While the beef cooks, shred the lettuce, dice pickles, chop onions, and grate the cheddar cheese.
Assemble the Salad Bowl: In large bowls or meal prep containers, layer shredded lettuce, cooked ground beef, pickles, onions, and cheese. Drizzle with your Thousand Island dressing generously.
Final Touches: Add a dollop of mustard if you like extra tang, toss gently, and garnish with extra pickles or cheese for a splash of color.
