Melt butter and spread in a 9 x 13 pan.
Separate the cinnamon rolls and cut each roll into 8 pieces. Spread in pan. Save the icing to use later.
Beat eggs together completely in bowl. Then add the cream, vanilla, and cinnamon to the eggs and mix thoroughly. Pour over the cinnamon roll pieces.
Drizzle syrup all over and Sprinkle chopped pecans on top. (I just put pecans on half of mine)
Bake at 375 degrees for about 22-28 minutes or until golden brown. Let cool for about 15 minutes.
Take the metal cover off the icing and stick it in the microwave for about 15 seconds or until it is thin enough to drizzle. Drizzle icing all over the top of the baked cinnamon rolls.
Serve with syrup if desired.