Lasagna Bolognese aka Lasagne alla Bolognese, the 'OTHER' Lasagna — Yummy! This seems simple enough – pasta sheets, 2 sauces, & Parmigiano-Reggiano cheese. The main ingredient is the sauce, which originated in Bologna, Italy. This consists of ground meat or a combo of ground meats, diced mire poix (celery, carrots & onions), pancetta or prosciutto, milk &/or cream, wine, meat broth or stock, & just enough tomato!