My first advice is don't try to go all-in all at once, especially if you're not confident with your cooking skills. If you make a meal plan for the week that has you cooking every night, and then you get home tired and just want takeout, it's going to be much harder to stick with it. Some basic advice:
- Each weekend (or day off, if you work weekends), make a large pot meal. Chili is great, or soup, lentil stew, etc. Have it for dinner that night, then freeze the rest in single or double serving sizes (I use quarts, which provides about 3 servings for my family - 2 of us for dinner, plus my lunch next day)
- Build at least one 'easy' night into each week's plan, preferably something from your freezer from the previous step. That way if you have a really bad day, you can decide to shift that meal to that night, and all you have to do is throw it in a pot on the stove.
- Build in some repetition of things you really like. For instance, we have Pizza Friday (with home-made crusts made ahead and frozen, so it's also an easy day). You can also go for Taco Tuesday, Spaghetti Wednesday, or whatever food you enjoy. This gives you something to look forward to every week, and you will get very good at making it.
- Build in Leftover days, once you get a feel for how much leftovers you generate. I usually have one Leftover day during the week, depending on what I'm planning to make the other days. We'll have more leftovers from lasagna than from fish+rice.
- Plan to shop for fresh fruit and vegetables at least once a week, and don't buy more than you think you can eat (or buy things that freeze well)
- Write down your meal plan on the day before or day of when you will do your grocery shopping. Check the fridge and freezer first to plan around using up ingredients you have or that might go bad.
Add new recipes to your rotation slowly, as you get more confident cooking. A basic meal will usually include a starch (rice, pasta, potato, bread), a protein (incl. beans, lentils, cheese, etc.), and at least one vegetable. So if I see I have some broccoli in the fridge from the previous week, and some chicken in the freezer, I might make a day of baked chicken, pasta, and broccoli.
I write my weekly menus on a note on the fridge, on Sunday nights. That way when I come home each day, I can quickly look and see what I'm supposed to be making, so there is no decision fatigue or memory issues. I shop on Monday for any fresh ingredients I will need. As you expand your skills, you'll find a few go-to recipes that are your favorites to make, and other things that you like more infrequently. For instance, I love lasagna, but if I made one every week my husband would divorce me :P
If you're looking for specific recipes to try, we can certainly help with that too! Do you have any dietary requirements? How comfortable are you in the kitchen, and what tools do you have available?