If you want to do eggs benedict then here a few tips:-

1. Poach all the eggs in advance - if you poach them in acidulated water (add vinegar or lemon juice) until they have set, then transfer them into a bowl of iced water then you can store the poached eggs until you need them, overnight if need be - then just drop them back into hot water to reheat and serve.

2. Hollandaise is not that difficult, although there are a number of ways of doing it - this way is close to the classic method, but much simpler;
Put a small saucepan of water onto boil, then find a heat proof mixing bowl that will fit into the top of the saucepan without touching the water.
When the bowl is still cool, place an egg yolk in the bowl along with a table spoon of cold water, then beat the yolk with the water to make smooth foam - an electric whisk makes this much easier.
Put the bowl over the sauce pan, keep whisking - the idea is to use the steam from the boiling water to gently cook the eggy foam whilst it is still full of air, then start adding little cubes of butter whilst you whisk - probably about 80g per egg until it forms a smooth glossy sauce, then squeeze in some lemon juice to taste.

Scrambled eggs can be jazzed up a bit - add white crab meat or fresh spinach for a bit more impact.

Spanish-style frittata dishes usually go down well, make it an hour or so in advance and then there is no fussing when your guests arrive.