Good sources of protein rich foods are lean meat, fish and pulses

Meat

Some types of meat are high in fat, particularly saturated fat, which can raise cholesterol levels.
Try to go for the leanest option whenever you can. As a general rule, the more white you can see on meat, the more fat it contains. So, for example, back bacon has less than half the fat of streaky bacon.

Fish

Fish is not just an excellent replacement for fatty meats, it also actively helps to look after your heart. Its omega 3 fats help to protect your heart and promote a normal, steady heartbeat. It’s a good idea to try to eat at least two meals containing fish a week. The best sources of omega 3 fats are the so-called oily fish like salmon, sardines, mackerel and tuna. 

Pulses

Pulses include a range of beans, peas, and lentils, for example, baked beans, lentils (red, green, yellow, brown), black eyed peas, and chickpeas. These foods add bulk to a meal and are low in fat. The fibre found in pulses may also help to lower cholesterol.
Try adding pulses to soups, casseroles and meat dishes to add extra texture and flavour. By using more pulses and less meat in your dishes, not only will you have a great tasting meal, but it will also be lower in fat.