I heart skinnytaste.com. So so much.
My make ahead dinners are really only like, 70% make ahead. I like making certain things that day to keep them fresh.
Here's a typical week for DH and I:
Every day, without fail, we have salad. We use spinach for me, romaine for him. I always have cucumbers, tomato, onion, carrots, green peppers, broccoli, mushrooms and raddishes on hand to add to salads. I LOVE SALADS, and I always have. Generally I top them with FF ranch, and he uses low cal italian. We have wheat croutons and bacos. Mmm.
Okay!
Monday: Wheat linguini with tomato sauce and homemade turkey meatballs. For this, I've made the meatballs in advance and frozen them. I used jarred sauce (Delgrosso is the ONLY jarred sauce I will ever use. GREAT people and GREAT sauce!)
Tuesday: Fish tacos, with low carb/low cal tortillas for him and corn tortillas for me. With cabbage, jalapenos, homemade pico de gallo and a little sour cream. So good. I've marinated the fish from the night before, and chopped all the pico things, so its good to go when I get home from work.
Wednesday: Chicken stir fry, with snap peas, broccoli, carrots, onion, shoots, water chestnuts and peppers. SO tasty. I use left over wheat pasta and the hubby uses brown rice. All the veggies are pre-chopped before hand, and the homemade sauce is too. Chicken is pre-cubed and I've marinated it in italian dressing, soy sauce and a little hoysin.
Thursday: Steak with mashed "potatoes" which are really a box of Betty Crocker instant potatoes with a 1/2 bag of pureed cauliflower in it. He has no idea, and loves them.

I've smashed the cauli ahead of time, and marinated the steak, so all I have to do is grill it and stir the potatoes.
Friday: Friday tends to be a "leftovers" day, but if we don't have any or are tired of what we have, I'll make something with what I have around. I like going to those websites where I can punch in what I have on hand, and they tell me what I can make with it.
Saturday and Sunday we go out to eat. Because I'm lazy, lol, and we always have plans with other couples or with family.
I like food.com (which was recipezaar until recently) and kraftrecipies.com for ideas, too. I also love the HungryGirl cookbooks, I make a lot of things out of them.
I have a lot of recipies laying around. I love making new things, and trying it out on DH. I made homemade spinach pesto on Monday night and it was SO good, and was like, 40 calories per serving... Made for a super low calorie dinner!