What to do with leftover roast chicken?

You can make chicken salad, and smash up the potatoes and make fried potato patties?

Chop up chicken & potatoes. Take 1 pack chicken rice mix. Add to & cook the rice. Add 1 fried egg on top for breakfast. Chicken rice with chicken in it & some other. is good for breakfast or lunch. 

Chicken soup, or chicken pot pies, or tacos, nachos or quesadillas.

Make a curry. Chop up an onion and an apple and fry them gently, along with whatever spices you like, add in some apricot jam and/or chutney, and some chicken stock or water, let it all simmer for a while, then add the sliced leftover chicken and potato just to heat them through, and there you are. Cook some rice and a green veg to go with it.

Dice them up and make a hash out of them. Surprisingly delicious.

You can freeze it and take out as you want to use it like i like to use mrs.grass soups and just put the green onions cellery carrots all in containers in the freezers and use all as i need each with sandwitches witch you can do. 

I have made chicken cakes much the same way you make fish cakes that is with bread crumbs and an egg and some seasoning and form them into round cakes about 3 inches thick and cooking with olive oil. You can make a potato salad from the potatoes.

soup..... chicken sandwich and refried potatoes..... chicken salad using the potatoes
chop the potatoes and mince the chicken and use as a stuffing with other ingredients in a perogi/ triangle type hand pie..... ... chicken pot pie filling..... filling for tacos....

If it was a whole roast chicken you made, strip off all the meat and set aside, then simmer the bones to make chicken stock. Then you have some great choices:
1. Chill or freeze the stock and chicken meat for future use
2.Recipes could be chicken rissotto, curry ( Thai style coconut curry is lush), chicken soup ( add some veg, maybe noodles or rice)- either way you use the stock and the meat.
3. I love chicken sandwiches with mayo, with sliced re-fried roast potatoes on the side!

You can do a lot of things with roast chicken. Remove the bones and shred it. This can be used in several recipes, such as wraps, a sandwich or a salad. You can also cook it as stir-fry with veggies to change its taste completely. As for the bones, you can prepare chicken broth with it. 

dice and fry the potatoes and eat them with fried eggs.
Dice the chicken and make chicken salad or reserve the meat and use the carcass to make home made soup stock and make a terrific chicken noodle soup.

Stick em in a pot of water and chicken broth and frozen mixed veggies and make delicious soup.

Remove skin and bones from chicken, wash the potatoes and put both in a food processor. Lightly whiz them to smaller, but not tiny chunks (aim for a quarter inch size). Make a dressing of mayonnaise, coarse mustard, pickle relish and onion. Serve as a lunch entre.

Diced up together with some chopped herbs would be good in a 'Spanish' omelette / tortilla / frittata.

Chicken enchiladas with the chicken.Use the potatoes for breakfast.Just warm them in a skillet.

Make a chicken pot pie. Add the chicken to stir fries, soup. Make chicken salad for sandwiches. Make some gravy and pour it over the chicken, smashing up the roasted potatoes and putting gravy over them too.
Make chicken alfredo or chicken tetrazzini or any chicken-pasta dish.
Turn some of that chicken into chicken quesadillas, using sour cream, cumin, etc etc as desired.
Slice the potatoes and pan fry with a bit of onion, until they are crispy, adding salt and pepper before serving. Serve them with eggs and bacon at breakfast, or with supper.

Shred the meat mix with some enchilada sauce roll up a tablespoon or two of meat mixture in corn tortilla place in sided-oven safe dish, cover with remaining enchilada sauce and shredded cheddar -bake 20-30 minutes at 350.

chicken salad
make a hot sandwich...cheese melted on chicken chunks with some bacon and ranch...on toasted sourdough
chicken stir fry
potato salad
hashbrowns
potato soup

You could make a chicken vegetable soup with potatoes. My wife will use the extra potatoes in eggs for breakfast and the extra chicken to make enchiladas for dinner.

Chicken soup with potatoes and veggies. 
Chicken pot pie.

You could use the chicken in a stew. The potatoes just keep in the refrigerator, until needed, max 3-4 days until required just reheat in the microwave, if you have a combination microwave reheat in microwave mode then use the convection mode to crisp them up. How long required depends on the power of your microwave oven.

You could make soup or a casserole.