I second Jamie's Ministry of Food. Recipes are very easy to follow.
Here's a link to BBC Good Food's easy recipes.
Personally, I think the easiest things to learn to cook are tray bakes. Particularly ones that are cooked on a relatively low heat because you can just mix together the list of ingredients, put them in the oven at the temperature specified for the amount of time specified. Here's a selection of chicken ones from BBC Good Food
Also, work on basic cooking techniques like frying. A steak, or chop make a simple easy meal that can be as basic as steak, potatoes, steamed veg. You can then work on expanding your skills to include interesting sauces or more complex side dishes.
eg, to fry steak I simply oil and season my sirloin steak (I use sirloin as it has a bit of fat which helps keep it tender and it tends to come in a thickness that is easy to cook at home).
Heat up a griddle pan or non-stick pan as high as you can then put the steak in. Cook for about 2-3 minutes on each side then leave to rest. Done. This is the basic option.
Similarly, for one person, a stir fry can be pretty easy. Pre-prepared stir fry veg, stripes of meat or chicken, straight-to-wok noodles and a sauce. Fry your strips of meat hard and fast so they have some caramelisation and are just cooked through. Set aside. Fry your stir fry veg hard and fast too. Add noodles. Mix all together and return meat/chicken. Add pre-made sauce.