What are some of your favorite things? Do you tend to eat too little or too much?
I'm thinking that working out of the freezer would help, since you can leave it there until you need to use it. I like to keep cooked rice in the freezer, along with chicken breasts, sweet potato fries, chicken stock.
Then in the fridge I keep a couple days' worth of baby spinach, grape tomatoes, carrots, apples, cheese, milk/coconut milk, ham, bread. I get a CSA box of veggies and a dozen eggs each week also.
That pretty much covers it for basic meals.
Pantry I keep canned tomatoes, dry and canned beans, oatmeal, pasta, pasta sauce.
With those ingredients, I can make almost anything, and it doesn't have to be fancy or hard! Just plain old food, cooked and eaten, does the job!
(Tonight we had kidney beans with ham and chicken leftovers, brown rice with soy sauce, spinach/tomatoes/avocado with homemade dressing, blueberries and fresh apricots. Just a meal pieced together out of leftovers and fresh fruit and veggies, which took about 10 minutes to pull together and serve.)
I don't know what your money situation is, but if it's not an issue then you might even consider some of those meal delivery services. There are some out there that are very healthy and only use fresh, organic ingredients. I sometimes wish I could just do that! lol