Preheat oven to 375°F and line a baking sheet with parchment paper
Prepare the filling:
In a medium bowl, use a fork to whisk together 6 eggs, 1/4 cup of milk and salt to taste (optional, I did not add salt). Reserve two tablespoons of the whisked egg and milk mixture and set aside in a small bowl, to be used as egg wash on the puff pastry.
Melt 1/2 tablespoon of butter in a medium non-stick skillet over medium high heat. Reduce heat to medium and pour in the whisked eggs. Cook egg, stirring occasionally, until the eggs have set and cooked through to scrambled egg. Transfer to a plate and set aside to cool.
Melt 1/2 tablespoon of butter over medium-high heat in the skillet you used to make the scrambled eggs. Reduce heat to medium and sauté 250-300 grams of fresh spinach leaves. Add a pinch of salt and stir. Once the spinach has wilted, stir in 2 tablespoons of cream cheese and the 1 - 2 diced roasted red peppers. Set aside to cool.
Prepare the Puff Pastry Roulade:
Gently unroll or unfold the 10"x15" puff pastry (thawed from frozen) onto a cutting board or another large flat surface - keep the liner underneath the pastry. Seal any cracks with your fingertips.
Distribute the scrambled egg and the spinach/cream cheese/roasted red pepper mixture evenly over the puff pastry. Place breakfast sausages in 2 rows near the bottom edge of the longest side of the puff pastry dough. Holding the edge of the liner underneath the pastry, gently lift the pastry and stretch over the sausages. Place next line of sausages (about 4 more) and roll over with pastry. Continue rolling up the pastry dough until fully rolled. discard liner.
Gently transfer the roulade over to the baking sheet. Use a pastry brush paint over the top of the pastry with a light coat of the egg wash you set aside. Sprinkle with poppy seeds or sesame seeds (or both) and place baking sheet in the oven. Bake until the puff pastry has browned, approximately 30-40 minutes.
Cut the roulade into approximately 1.5 inch pieces and serve warm.
Notes
Try adding these to taste:
sliced mushrooms - add salt to taste
diced zucchini
some sliced onion
bacon - full slices, or precut
prosciutto - full slices, or precut
grated cheese - Mozzarella, Feta, Cheddar
You can add all these ingredients uncooked, they will cook in the oven inside the roulade.