I think if we were in that position lunch would take the place of dinner - we'd cook the meal in the middle of the day and then the leftovers would be "lunch" for the evening meal. When we're out of leftovers we will do beef & havarti sandwiches, grilled cheese w/ tomato bisque, Mac n' cheese with peas & tuna, ramen with goodies like softboiled eggs and inari tossed in. Basically anything we would normally make & have patience for can happen during the day just as easily at night too though!
This site has some great ideas too:
http://www.100daysofrealfood.com/real-food-resources/
Here is the lunch snippet:
Lunch:
Peanut butter and jelly2 on whole-wheat bread1, sliced fresh fruit, and crackers3
Whole-wheat tortilla filled with hummus, cheese and optional veggie (spinach, cucumber, carrot, lettuce or tomato), side of fresh fruit and store-bought whole-wheat pretzels4
Grilled cheese on whole-wheat bread1, applesauce, and popcorn
Caprese salad with basil pesto or grilled caprese salad sandwich (pictured)
Whole-wheat macaroni and cheese with frozen peas mixed in and a side of fresh fruit
Curry chicken salad on whole-wheat bread, with a sliced apple
Fruit smoothie or PB&J smoothie (pictured above)
Whole-wheat tortilla filled with chopped cucumber, tomato, feta cheese and sprinkled with dried dill or leftover grilled veggies and goat cheese
Whole-wheat cinnamon raisin bread and cream cheese sandwich, strawberries, and a hard boiled egg
Roasted pumpkin seed and currant salad and easy-cheesy crackers
A sandwich inspiration creation
Green eggs and ham with a whole wheat biscuit
Potato pancakes (with vegetables) served warm or cold over a bed of spinach with goat cheese and vinaigrette dressing.
Crackers3 with hummus, grapes, cheese, and celery or carrots
A big salad topped with nuts, cheese and olive oil/balsamic vinegar for dressing
Grilled pimento cheese sandwich with whole-wheat pasta salad and fresh fruit on the side
Diced avocado and brown rice with a little bit of low-sodium soy sauce
Whole-wheat waffle sandwich with cream cheese, cinnamon and raisins in the middle (pictured) with a side of seasonal fruit
Berry good wrap with a side of sliced cucumber and an orange
Egg soufflé with ham and a side of arugula salad with shaved Parmesan (perfect for brunch)
Brie and apple sandwich with leftover turkey and a side of grapes
Feta pasta salad with avocado and tomato
Whole-wheat tortilla filled with easy slow cooker refried beans, melted Monterrey Jack cheese, and sour cream with a side of avocado
Greek Yogurt Egg Salad with a turkey-and-cheese kabob and bell pepper slices