Meal planning is overwhelming to me, so I made a habit of rotating a selection of staple meals with fewer, more stable ingredients. PB or eggs scrambled with cheese on toast for a breakfast. A salad of chickpeas, carrot, broccoli and avocado with a whole-wheat roll, or a lentil/rice bowl, for lunch. Precook larger batches of freezer-friendly staples like chickpeas, lentils, rice, turkey burgers, meatloaf, tomato gravy - reserve 2-3 days' supply and freeze portioned batches of the rest. Allow yourself less experimental ingredient buys per grocery run - so if it turns out they don't synergize with your staples, you're not accumuating a lot of dead-end ingredients.