In the battle to create the best plant-based burger, Beyond Meat just fired a shot. The company has reformulated its Beyond Burger, making it meatier and better looking, with “marbling” to emulate the fat in traditional burgers. The new formulation is rolling out to grocery stores this week.Beyond, like its competitor, the Impossible Burger, had previously engineered a burger that “bleeds” — it has beet juice that gives the alternative protein the characteristic pink of a ground beef burger.