Lesley Riley, also known as “Mama Biscuit,” is bringing her Mama Biscuit’s Gourmet Biscuits to Walmart shelves at 55 stores in nine states. The rollout started Oct. 8. Mama Biscuit’s, based in Frederick, Maryland, is just three years old and was one of the 500 companies and 750 products invited to attend Walmart’s Open-Call event […]