Boca Raton, Fla. — I Heart Mac & Cheese, a fast-casual concept specializing in customizable, made-to-order macaroni and cheese bowls and grilled cheese sandwiches, has signed 12 franchise agreements with seven new franchisees throughout the first quarter of 2021. In addition, the brand has opened three restaurants in Indiana, Georgia and New York, with 30 additional openings planned by the end of the year. “I Heart Mac & Cheese is a unique and attractive franchise concept that is really resonating with aspiring entrepreneurs — including those from many diverse backgrounds …