Η τούρτα της δεξίωσης θα είναι με φράουλες, αλλά εγώ θέλω και λίγο παγωτό.

Because της δεξίωσης is in the genitive case, which is often used in Greek to show possession or association.

So:

• η τούρτα = the cake
• της δεξίωσης = of the reception

Together, η τούρτα της δεξίωσης means the reception cake or more literally the cake of the reception.

The base form is:

• η δεξίωση = the reception

But after another noun, it changes to the genitive:

• της δεξίωσης

This is very common in Greek:

• το χρώμα του αυτοκινήτου = the color of the car
• η πόρτα του σπιτιού = the door of the house

θα είναι is the future tense of είμαι (to be).

• είναι = is
• θα είναι = will be

So:

• Η τούρτα της δεξίωσης θα είναι με φράουλες
  = The reception cake will be with strawberries

In Greek, the future is usually formed with θα + verb.

Examples:

• θα πάω = I will go
• θα φάμε = we will eat
• θα είναι = it will be

Here με means with.

So:

• με φράουλες = with strawberries

Greek often uses με to describe ingredients, toppings, or what something comes with.

Examples:

• καφές με γάλα = coffee with milk
• πίτσα με μανιτάρια = pizza with mushrooms
• παγωτό με σοκολάτα = ice cream with chocolate

So η τούρτα ... θα είναι με φράουλες means the cake will be made with, topped with, or served with strawberries, depending on context.

Because Greek normally uses the plural when talking about something like strawberries as an ingredient or topping.

• φράουλα = strawberry
• φράουλες = strawberries

Just as in English, a cake with strawberries sounds more natural than a cake with strawberry in many contexts.

So με φράουλες means the cake has strawberries on it, in it, or as part of it.

Yes. The verb θέλω already shows that the subject is I, so εγώ is not grammatically necessary.

• θέλω = I want

Greek often leaves subject pronouns out unless they are needed for emphasis, contrast, or clarity.

Here εγώ adds contrast:

• ... αλλά εγώ θέλω ... = ... but I want ...

It sounds like:

• but I personally want...
• but as for me, I want...

So the speaker is contrasting their preference with the cake choice.

Here και means also / too rather than simply and.

So:

• θέλω και λίγο παγωτό = I also want a little ice cream / I want some ice cream too

This is very natural Greek. και can connect words like and, but it can also add the idea of too, also, as well.

Compare:

• θέλω τούρτα και παγωτό = I want cake and ice cream
• θέλω και παγωτό = I want ice cream too

In this sentence, the second meaning is the important one.

Because λίγο παγωτό means a little ice cream / some ice cream, not one ice cream.

• λίγο = a little / some
• παγωτό = ice cream

So λίγο παγωτό refers to an amount, not a countable item.

Compare:

• θέλω λίγο παγωτό = I want a little / some ice cream
• θέλω ένα παγωτό = I want an ice cream
  This could mean one serving, one cone, one cup, etc.

So the sentence is focusing on quantity, not on ordering one unit.

Because παγωτό here is being used as an uncountable noun, just like ice cream in English.

Greek often uses the singular for substances or mass nouns:

• λίγο νερό = a little water
• λίγο ψωμί = a little bread
• λίγο παγωτό = a little ice cream

So singular παγωτό is exactly what you would expect here.

The word order is natural, but Greek is more flexible than English.

This order highlights the contrast clearly:

• αλλά = but
• εγώ = I
• θέλω = want
• και λίγο παγωτό = also a little ice cream

So it feels like:

• but I want some ice cream too

You could change the order a little in Greek, but that would slightly change the emphasis.

For example:

• αλλά θέλω κι εγώ λίγο παγωτό
  = but I want a little ice cream too as well

  That version emphasizes that the speaker is included too.

The original version emphasizes I as a contrast.

Greek uses the definite article very often, sometimes more often than English does.

• η τούρτα = the cake

Here it refers to a specific cake: the one for the reception. So the definite article makes perfect sense.

Greek articles also show gender, number, and case:

• η = feminine singular nominative
• τούρτα is a feminine noun

So:

• η τούρτα
• η δεξίωση

Both are feminine singular nouns.

Yes, τούρτα usually refers to a decorated cake, celebration cake, or layered cake, which fits this sentence very well.

Greek also has κέικ, but that usually means something more like cake in the sense of a loaf cake or sponge cake, not necessarily a formal event cake.

So for a reception, τούρτα is the natural word.

A useful breakdown is:

• Η τούρτα της δεξίωσης = the reception cake
• θα είναι = will be
• με φράουλες = with strawberries
• αλλά = but
• εγώ = I
• θέλω = want
• και = also / too
• λίγο παγωτό = a little ice cream / some ice cream

So the sentence is built as:

[topic] + [future statement] + [contrast] + [personal preference]

That is a very common Greek pattern:

1. say what something will be
2. add αλλά
3. contrast it with what the speaker wants

It is natural, conversational Greek.