Baked sweet potatoes and three topping options

This sweet potato is great both fried and baked, and even more so with various toppings.
Brush the sweet potatoes with oil, salt and bake them in foil at 190°C for about 50 minutes until they are tender.
Check for doneness with a toothpick - large tubers may take a little longer to cook!
Don't cut the cooked sweet potato all the way through, add a piece of butter and melted or hard cheese and mix everything with a fork into a homogeneous mass.
And now use toppings:
Cheese:
2 boiled eggs
80-100 g of hard cheese
70 g of mayonnaise
Half a clove of garlic
Fresh dill
Salt and pepper
Grate everything and mix.
Add pieces of bright dorblu on top.
Ham:
2 boiled egg yolks
1 tbsp of mustard
Chopped whites
60 g of mayonnaise
80 g of hard cheese
80 g of ham
Green onions
Grind the egg yolks with mustard, add mayonnaise, finely chopped whites and ham. Grate the cheese, mix everything and put the dorblu slices on top.
Fried mushrooms:
Fried mushrooms (can be with onions).
Put the mushrooms on the sweet potato and add the dorblu slices.
Bake for 2-3 minutes to make the crust on top.