Beat the eggs well and then add in the cottage cheese and beat until well blended. Salt and pepper to taste. Set aside.
In the top part of your fritatta pan saute the sausage pieces until almost done and then add one tablespoon of the butter. Add in the red onion and red bell pepper. Saute another 2-3 minutes and then add in the asparagus for another 1-2 minutes.
In the bottom of the fritatta pan, melt one tablespoon of the butter, when melted and hot, add in the egg/cottage cheese mixtuere. Let set in pan a few minutes then start lifting edges to allow uncooked eggs to go to the bottom. Do this all around the edges until almost set. Scatter the sausage, bacon/proscuitto and asparagus/pepper/onion mixture over top of fritatta. Arrange the sliced tomatoes over this and then top with cheese. Cover with the bottom of pan (make sure it locks in place) and let cook for 3-4 minutes and then carefully flip the pan over and let cook another 3-4 minutes. Carefully flip back a final time and cook 2-3 minutes more. Take a peek and see I it looks browned and puffed. If so, carefully remove top pan and slide your fritatta out on a plate.
Note: If you do not have a fritatta pan, use any 10" ovenproof/stovetop skillet. Using this method you will want to have all your vegetables and sausage sautéed and set aside. Start with 2 tablespoons of butter in skillet. Melt until hot and sizzling. Add in your egg/cottage cheese mixture and cook as instructed above. When it is startign to look a little puffed, top with sausage, then vegetables, then arrange tomatoes over top and sprinkle with cheese. You will now put this in a 350° oven for 20-30 minutes. You want this to be slightly browned on top and you may want to use a knife to check the eggs to see if they are cooked thoroughly. If it starts to brown too much, top with foil until it has finished cooking. Remove from oven and slide out of pan or serve from the pan. Top with oiled arugula, optional.