I just cut out most carbs (no bread, pasta, rice, oats, noodles or potatoes) and limited starchy vegetable carbs like sweet potatoes and carrots to just a couple of times per week. Also cut down on fruit to 1-2 portions per day (I used to snack on a crazy amount of fruit and smoothies each day). Oh and I don't have carby bananas anymore as found they weren't helping me lose weight.
Foods I can eat are things like protein, dairy (and I go for full fat dairy as keeps me fuller for longer), plenty of veg (especially the green ones) and also the odd treat a couple of times per week like biscuits, chocolate, ice cream and alcohol (but I don't go crazy with these and stick to small portions).
It has really worked for me and I don't calorie count anything, am just mindful of potion sizes.
Typical day would be something like this:
Breakfast - Arla protien yogurt with chopped strawberries and chia seeds.
Snack - babybel cheese, apple slices dipped in peanut butter.
Lunch - mozzarella, avocado, tomato salad with a bowl of spinach soup.
Snack - chocolate
Dinner - spag Bol but just the sauce, with some broccoli and a big salad on the side.
Snack - hot chocolate
I also drink loads of herbal teas throughout the day too. If I eat out then I'll try and go for the least carby thing on the menu, but if there aren't any decent options then I'll just go for something like a burger but I'll not eat the buns and only eat half the chips or ask for extra salad instead of the chips.
If I get a takeaway then I'll get two main dishes from the Chinese for myself and skip the rice or noodles.
I don't do much exercise and this way of eating is helping me lose 2-3 pounds per week without fail