Heat oven to 350°F. Unroll dough and separate into 2 long rectangles; place lengthwise in ungreased 13x9-inch pan. Press in bottom and 1/2 inch up sides to form crust; press edges and perforations to seal. Sprinkle cheese over crust; arrange broccoli over cheese.
In medium bowl, beat eggs slightly with wire whisk. Beat in soup, mayonnaise, onion powder and dill weed. Stir in tuna and pimiento. Pour evenly over broccoli.
Bake 28 to 32 minutes or until filling is set. Cut into squares; serve warm.