lentils are incredibly difficult to prepare and cook with. especially for someone who is new to cooking. unless you are in destitute poverty and have traded away your EBT for fent and tranq I advise against this.
Are you retarded or something? Lentils aren't difficult to cook with. You soak them overnight and then cook with them in stews and soups -- children here can do that.
Back to the topic at hand...
As someone that cooks a lot, the issue is that people have some retarded expectations on portion sizes and what an actual meal is.
Not everything has to be a fancy dish with 10 ingredients. People also seem to have an issue with eating the same dish several times a day, which is insane compared to only 60 years ago.
Stock up in seasoning -- you can make something like chicken breast or thigh very versatile with only a few changes in seasoning.
I'll give you a breakdown of my eating habits for the last week:
For breakfast:
Overnight oats - a bag of oats, top with yogurt, add some frozen fruit and leave overnight. It's <£1 a portion.
Toast and butter - filling, cheap, and delicious with the right butter <20p a portion
Bacon sandwich - 3 strips of back bacon, two pieces of bread. <£2 a portion
Toast and Lemon Curd - cheap and delicious, also good for vit-c
Lunch:
x2 sausages with mash potato. Pretty cheap at <£1.50 a portion.
Cheese and crackers - pretty cheap depending on the cheese
1 chicken breast over a mixed salad with some salt and pepper, you can add cheese too
Pickles and cheese
Cheese and ham toastie - two bits of bread, some ham, cheese and done
Chicken noodle soup - a chicken breast, pack of noodles, some spring onion, and chicken stock
Dinner:
Egg fried rice with beef strips
Chicken curry with rice (I had this twice as I really like it)
Fries with cheese with bacon and beef strips chopped up to make dirty fries
Pork steak with boiled potato, steamed veg, and peas
I'll probably have the same chicken curry over the weekend as it's fine to repeat meals.
Prepare stuff in advance and FREEZE IT. Americans seem to have some repulsion against freezing shit. Your marketeers have convinced you that your fridge should be larger than your freezer.
From the ingredients above, they all intertwine.
1 pack of chicken
1 pack of sausage that will stretch 2-3 weeks depending on my mood for them
A multipack of steam veg
A bag of rice which will last for months
Beef strips, with enough portions frozen for 2 other meals
Chinese Curry mix (which probably isn't available outside the UK)
A bag of oats that will last 2-3 weeks.
A pack of mixed frozen fruit
Bread
Butter (that will last about a month)
Potatoes (that will last about a month)
That's about £25 worth of food, but there are ingredients that carry over and reduce the next cost of purchases.