well the englush diet is totally different from indian, so it will eb a bit of a shock for them. Indians def don't do cereal with milk or bread much. Do you have indian grocers anywhere near you? You should be able to buy idli, or puris.
Typical Indian diet IME -
Breakfast -
Indian tea is essential and
sort of things like bombay mix, you can get all sorts of different ones.
or puris - little flakey flat breads that are deep fried, and lovely dipped into tea.
Or leftover bhajia dipped into tea.
Lunch -
bhajia, mogo, puris, parathas and pickle,
bhel puri, samosas, dhebra,
Dinner -
Curry Usually rice, chapaties, and one curry and maybe one dhal as well. If you do have any indian stores near you you can buy ready made spice mixes that have recipes on the back and are dead easy to make.
Dp is indian, so I make indian food a lot, mostly veggie. I have also adapted trad english food too though, so some ideas that might be worth trying -
pizza - every indian I have ever met loves pizza, but I've foudn veggie is preferred.
shepherds pie - replace the mince with quorn or chickpeas, and add some tabasco to the gravy.
Chilli con carne, with quorn mince.
spicy roast quicken - marinate in garlic, ginger, onion, chopped chillis, lemon, paprika, and olive oil for a few hours.
spag bol - make with lambs mince, or quorn, and put in lots of veg and add worcester sauce.
mushroom stroganoff - with tabasco added.
lasagne - made with black eyed beans and flaked chillis, and salsa instead of the tomato layer.
chicken with veg - Fry off finely chopped aubergines, courgettes, onions, peppers, cherry toms, in oil with chillis and garlic. flatten some chicken breasts, and layer over mozzarella and the veg mix, then bake til browned on top.