The layers of meat and cheese in a classic lasagne dish act as the ultimate comfort food for many people, coming in many different variations. One such variety is green lasagne, which includes one small difference that makes for a deeper flavor profile and, of course, a beautiful green color.

To transform classic lasagne into green lasagne, look for green lasagne sheets at the grocery store, which are flavored with spinach. It’s a variation that originated in Bologna, Italy, where cooks would put nettles in their pasta to give it its green flavor, but the spinach-flavored pasta takes the flavors of the other key ingredients up a notch.

To make green lasagne, place olive oil in a pan before adding onions and peppers on medium heat and cook for eight to 10 minutes, then add garlic and stir for a minute. Add in beef and carrots, turn the heat to medium-high, then add beef stock, tomato purée, chopped tomatoes, Worcestershire sauce, salt, and pepper to make the beef ragú.

For your sauce, add butter on low heat and, once melted, add flour and stir together for several minutes before adding milk to simmer, adding parmesan cheese just before removing the pan from the heat. To the bottom of your lasagne pan, add ragú, the spinach pasta sheets, then white sauce, repeating for three layers before topping with cheese and baking for 40 minutes.