If you watch the sales, get London Broil and Turkey breast on sale.
London Broil (also cook backstraps this way using less time on grill) is an absolute favorite: marinate, scored meat up to three days in 1 Tblspn garlic (can use powder or salt if needed), 1/4 cup vinegar, 1Tblspn olive oil, and pepper, then add water until covered. Fire up the grill to HOT.
Cook for six minutes on each side, repeat (for medium well), adjust second cooking time for "doneness". Serve with Au Jus sauce.
Slice meat thin (we use electric knife).
We like garlic bread and salad with it. The children clean this up, rarely have leftovers. If you want more hearty, add baked potatoes. This is great for company, also.
Turkey breast: you can do this in a slow cooker while working or in oven on weekend. I like it because if you are expecting travelers, it does not hurt to keep it cooking until they get there.
I use a dark fruit or wine in the cavity, with about 1/2 cup of OJ and poultry seasoning. I cook it breast down timed according to directions for weight. When it is finished, I add blackberry or grape Kosher wine to drippings for great gravy. Serve with favorite sides potatoes, rice, stuffing, veggies, cranberry ...., salad. Use leftovers!
You can also make your own freezer meals with leftovers on "bulk" meals (spagetti, chili, etc), as long as you don't freeze potatoes, they turn out as good as the store bought. If you want to offer choices, have different meals frozen (I use the sandwich rubbermaid containers for nice portion size), when the freezer starts to fill.