Burger King is testing Impossible Foods’ meatless nuggets. It will do so in multiple markets and become the first fast-food restaurant to carry the brand’s chicken replacement.

Customers in Des Moines and Iowa as well as Boston, Boston, Miami, and Boston will have the opportunity to taste Impossible Nuggets made from plant ingredients starting Monday.

The Restaurant Brands InternationalImpossible Foods was the first chain to offer its meatless burgers. The chain reduced its prices to match the popularity of the popular item. Burger King’s competitor McDonald’shas formed a partnership to Impossible’s principal challenger Beyond MeatAlthough they’ve launched several plant-based products in the U.S., it is not yet possible to do so.

Burger King’s Impossible Nuggets provide a comparable opportunity to the Impossible Whopper in driving traffic to their restaurants. Although meat substitutes have become more popular on fast food menus, chicken alternatives remain rare since Impossible as well as Beyond launched their versions only recently. Impossible started rolling out its chicken substitutes. meatless nuggets in restaurants and grocery stores in SeptemberWhile Beyond’s tenders hit restaurantsIn July.

This is because traditional chicken meat has become more scarce and expensive. Bank of America Securities reports that chicken commodity prices increased by two-thirds this year. Yum Brands’KFC discontinued advertising its chicken tenders last month due to a lack of supply.

Burger King announced Wednesday that they will be launching Ghost Pepper Chicken Nuggets in all 50 states starting Monday. This is white meat chicken, unlike the Impossible Nuggets.

Restaurant Brands shares have increased less than 1% in the past year. This gives it a market worth of $28.5 billion.