Set aside while preparing the cheese sauce. Melt butter in a saucepan. Stir in flour and continue cooking until flour bubbles. Remove from the heat. Whisk in milk until sauce is smooth. Return the sauce to the stove and continue stirring and cooking until sauce comes to the boil. Reduce heat and cook a further 1 minute. Remove from heat and stir in 1 cup of cheese.
Preheat oven to 190°C (fan assisted). To assemble the lasagne, lightly grease a lasagne style dish (2 Litre capacity). Place a single layer of lasagne sheets on the bottom of the dish. Spoon over half the meat sauce. Top sauce with pasta sheets. Repeat the layer ending with the pasta sheets. Pour over cheese sauce and scatter over remaining ¼ cup grated cheese. Cook lasagne for 25-30 minutes until top is golden and pasta cooked. Serve with a fresh green salad on the side.
Replace the beef mince with chicken or pork mince if wished.
Replace black beans with canned and drained red kidney beans or lentils.