Sounds like a contradiction, but this is one place that you really can have it all. Keeping your plan simple is the best way to start. Plan one week at a time, and if you can, only plan dinners the first month. Once you start cooking 5 - 7 meals a week, you'll have leftovers that make great unplanned lunches. Think of all the money you'll save just by not going out to lunch everyday, not to mention the trash that you won't be sending to the landfills every day.
Don't make the mistake of making one pot of chili to eat on all week. You can make a pot of beans and use them in 2 of your dishes this week, then freeze the rest for next time. Keep the week interesting by adding variety into each meal. You could try planning your menu by country, protein, or by picking a vegetable a day from your CSA box. It's easy to have pasta every Monday if one week you have whole wheat angel hair with marinara sauce, orzo with an arugula pistachio pesto the next, and pumpkin white bean lasagna after that.
Plan a leftover night each week. It gives you a chance to go out if you want without messing up your menu plan, or it gives you a night to relax at home and not cook at all. If you do go out, freeze any leftovers in individual containers to use for lunches, or a dinner one night when you don't feel up to cooking.
Here are a few ideas for your weekly theme template:
- Mon - American, Tues - Chinese, Wed - Italian, Thurs - Thai, Fri - Mexican, Sat - Leftovers, Sun - Indian
- Mon - Tofu, Tues- Chickpeas, Wed - Tempeh, Thurs - Wheat Gluten, Fri - Chickpeas, Sat - , Sun - Leftovers
- Mon - Cabbage, Tues- Green Beans, Wed - Tomatoes, Thurs - Broccoli, Fri - Cauliflower, Sat - Potatoes, Sun - Leftovers