McDonald's is making a big deal of its Snack Wrap line.

The Oak Brook-based fast-food corporation is testing a larger premium version of its Chicken Snack Wrap.

The burrito-sized Chicken Grande Wraps feature diced cucumber, shredded cheese, sliced tomato and lettuce and come in three varieties -- Garden Ranch, with ranch sauce; Roma Pesta, with tomato pesto and garlic aioli; and Santa Fe BBQ, with barbeque ranch sauce, black beans and corn.

The large wraps -- heavy on the lettuce -- cost about $3.99 each, compared with $1.49 for the Snack Wraps.

The company recently replaced the Mac Snack Wrap it introduced last year with a more expensive Angus Snack Wraps line (about $1.99 each).

The wraps with grilled chicken run 350-370 calories, while the fried version have 420-440 calories.