Here's Why Environmentalists Are Cheering The Latest Burger At Sonic Drive-In The fast-food chain is about to roll out a new kind of burger made from a mixture of beef and mushrooms. Sonic calls it "uniquely delicious." Environmentalists say it could help save the planet. The fast-food chain is about to roll out a new kind of burger made from a mixture of beef and mushrooms. Sonic calls it "uniquely delicious." Environmentalists say it could help save the planet. Business
The fast-food chain is about to roll out a new kind of burger made from a mixture of beef and mushrooms. Sonic calls it "uniquely delicious." Environmentalists say it could help save the planet.
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