You could try to cook a couple main dishes on a weekend, then freeze them in portions for during the week. Or as a a few people here in this forum do, toss a lot of stuff in a crock pot, and let it simmer all day waiting for you to get home.

I have the time issue myself. I like to eat in variety, so I always take the time to make my own meals instead of ordering in. In the end it's about your personal health and as Bill Clinton learned, it's too late when you find out.

One thing I do all the time is that I have a salad at every meal.

Mon.
Beef stroganoff, salad

Tues.
Grilled Chicken and whole wheat pasta primivera

Wed.
Asian Pork Chops, rice and spicy broccoli

Thurs.
Dinner out, family b'day

Friday
Turkey Sloppy Joes, sweet potatoe fries and salad

Sunday - grilled chicken with chipotle marinade, grilled corn

Monday - Salisbury steak, broccoli/cheese, baked potatoes

Tuesday - Quesadillas

Wednesday - Red beans and rice

Thursday - grilled hamburgers, roasted potato wedges

Friday - leftovers or go out to dinner

This week we have had:

Sunday - grilled burgers
Monday - roasted chicken
Tuesday - paninis
Wednesday - beef stroganoff
Thursday - chicken with cream of mushroom
Friday - grilled shrimp
Saturday - homemade pizza

I didn't know so many people had pre-determined meals. I just play it by ear. Usually on friday, saturday, or sunday, I will have pizza. That's as close as I come to having a schedule.