Allegra, I've divided my "to-try" list into different sections to correspond with the guide I use to plan my meals. It took me a while to do this but now it only takes me 5 minutes to make a meal plan each week. The guide I use is purely for nutritional purposes, to make sure I use a variety of ingredients that cover our nutritional needs. My guide goes something like this:
2 pasta based
2 potato based (1 sweet, 1 white)
2 rice based
1 bread based
1-2 red meat
2-3 chicken
2 fish/seafood
1-2 vegetarian
So a typical weekly plan might look something like this....
Monday: chicken curry with rice and veg
Tuesday: spaghetti bolognese with lots of added veg
Wednesday: baked fish on sweet potato mash with homemade tomato sauce and steamed veg
Thursday: chicken and vegetable stir-fry with noodles
Friday: homemade pantry pizzas
Saturday: pasta fagioli
Sunday: slow roasted lamb with roast potatoes and steamed veg
I usually do red meat on a Sunday, so if there's a particular recipe using red meat that I want to try, I would put it there instead of the roast. Same with any other days and recipes
And sometimes I deliberately change them around completely just to keep things interesting. I also try not to plan consecutive meals using the same ingredients.
I hope I've helped!