Shells & White Cheddar Introduced back in 1989, Annie’s Shells & White Cheddar is our original and best selling product. Annie created Shells & Cheddar (as we call it here) in her kitchen when she realized there was no all-natural, white cheddar macaroni & cheese on the market. She came up with a totally delicious product that is made with real white cheddar cheese and organic shell shaped pasta.