Lasagne are long, flat, broad noodles which are ideally suited to layering in a baking dish to make a sort of noodle pie with an assortment of ingredients which may include meats, cheeses, and tomato sauce.
In the ancient world the bull was a symbol of strength and power. Every culture in the ancient world was connected to bull worship in one way or another. Many people would seek the bull deity for divine blessings, whether for rich crops and a fertile harvest or for victory in battles.
If you mean Native Americans, the bulls/buffalo skull is a sign of bravery and strength. The bull/buffalo is a strong proud beast that protects his family and will not back down from a fight. They will give their life to protect their loved ones. I hope that this answers your question.