Rinse the chopped broccoli and Add to a large pot and fill halfway with water. Cook til tender. Drain water and mince broccoli in a chopper til minced finely. Set aside.

In a large pot add pasta and cook according to package directions. While pasta is cooking add Butter to a large skillet and cook til melted then add the flour and make a rue. Slowly pour in the cream a little bit at a time whisking til sauce is smooth. Then add tuna, shredded cheese, and seasonings to sauce stirring to combine.