Healthy Cheeseburger Bowl (Big Mac in a Bowl)

Name: Healthy Cheeseburger Bowl (Big Mac in a Bowl)
Prep time: 10 min
Total time: 10 min
Cuisine: American
Ingredients: 1 lb. ground beef (70/30 blend works well here); 2 heads romaine lettuce, chopped; 2 cups halved cherry tomatoes; 1/4 large white onion, chopped; 1 1/2 cups shredded cheddar cheese; 1/2 cup mayonnaise; 2 tbsps ketchup; 1 tbsp yellow mustard; 3 tbsps chopped dill pickles (plus extra slices for garnish, optional); 2 tsps apple cider vinegar; 2 tsps chopped fresh dill