Whats a warm dessert/food to have after dinner?

melt some jelly on the stove and drizzle it over your favorite cornbread recipe.

Make spiced pears: 1 jar of canned pear halves, any spices you like, and a drizzle of REAL maple syrup.. Simmer the pears in their juice on the stove with your spices (nutmeg, cinnamon, allspice ect.) strain and dish into a bowl, onto a plate. Drizzle with a little touch of real maple syrup (you only need a little bit, not enough to make it unhealthy). For a fancy treat, serve over French vanilla frozen yogurt with some candied pecans (not quite as healthy, but for special occasions...).

It only takes a few minutes to make a custard cream. I use it a lot in the colder months...if you've made rice for dinner, put it over rice for a quick rice pudding (its especially good if you put some fruit in, like kiwi, cherries or peaches..they warm quickly and are softer fruits). You can use it over toasted pan sweet bread, just put a little cream cheese mixed with cinnamon in between very thin slices, butter lightly and toast, then pour the custard over the top. Even fresh fruit left at room temperature while you eat, then peeled will work well with the custard over it.
There's always caramelized bananas, a great way to use those little green bananas no one else seems to buy and caramelizing them lets you control the amount of sugar you use. Apples, pears and pineapple all caramelize well also.
Using prepared pie crust you can make a quick and easy tartlet. Just line muffin cups with dough and bake until golden, then use any filling you like. For a good savory dessert, use apples chopped very fine, bacon crumbled and melt a nice slice of cheddar on them under the broiler.
If you don't mind a liquid dessert, try a chocolate coffee. Melt some chocolate in your microwave with a little cream in it, then add to your coffee. Top off with whipped cream and a sprinkle of cinnamon...or add the whipped cream right into a small amount of coffee and beat it together, then add the chocolate, it makes it thicker.
You can still eat yogurt with fruit, just make it warm! Heating the yogurt won't hurt it, and you can simply brush the fruit with a small amount of butter and put it under the broiler to add a quick browning to it. Voila...warmed fruit and yogurt!

Any warm fruit tart - not Kelloggs!.

make your own - apple , pear (with some calvados poured on top), cherry, peach etc. keep the sugar down foe your health. use the yoghurt as others use cream.

When you're feeling ambitious, make a Banana Pudding from scratch; not one of those "all cold ingredients" horrid things.

Or make a hot Apple Crisp with a scoop of your favorite Vanilla Ice Cream beside it.