McDonald’s is to roll out a line of salads in the United States after successful tests at 600 outlets.

Burger King and Wendy’s both launched premium salad lines earlier this year. The $3.99 McDonald’s salads include Grilled Chicken California Cobb, a Crispy Chicken California Cobb and Crispy Caesar.

McDonald’s has also launched its first "McDonald's 3-in-1" concept, which features a sandwich and meal shop along with an area designated for ice cream and baked goods inside a traditional McDonald's restaurant.