Eu faço salada com grão-de-bico.

Yes. In Portuguese, the subject pronoun is often omitted because the verb ending already shows who is doing the action.

• Faço already means I make / I do
• So Faço salada com grão-de-bico is perfectly natural

You keep Eu when you want emphasis, contrast, or clarity:

• Eu faço salada com grão-de-bico, mas ele faz sopa.

In European Portuguese, dropping subject pronouns is very common.

Faço is the 1st person singular present form of fazer.

• fazer = to do / to make
• eu faço = I do / I make

The ç is there to keep the s sound.

Why?

• A plain c before o would sound like k
• So faco would sound wrong
• ç makes it sound like s

So:

• faço sounds roughly like FAH-su in European Portuguese

It can mean both.

Portuguese fazer covers both ideas, and the context tells you which one is meant.

Examples:

• fazer o trabalho = to do the work
• fazer um bolo = to make a cake
• fazer salada = to make salad

In this sentence, it clearly means to make, because you are preparing food.

It is the present indicative.

Depending on context, it can mean:

• I make salad with chickpeas = habitual / general
• I’m making salad with chickpeas = present situation, if the context supports it

However, in European Portuguese, if you want to clearly stress an action happening right now, you often use:

• Estou a fazer salada com grão-de-bico.

So:

• faço = simple present, often general or habitual
• estou a fazer = more clearly ongoing right now

Because Portuguese often uses a noun without an article when speaking in a general way about an activity or type of food.

So:

• Faço salada = I make salad / I make salads

Compare:

• Faço salada = general statement
• Faço uma salada = I make a salad, one specific salad
• Faço a salada = I make the salad, a particular one already known in context

This is very natural in Portuguese.

Both are possible, but they are not exactly the same.

• salada com grão-de-bico = salad with chickpeas as one ingredient
• salada de grão-de-bico = chickpea salad, where chickpeas are the main or defining ingredient

So com focuses on what is included. De often sounds more like naming a type of dish.

For example:

• uma salada com grão-de-bico, tomate e pepino = a salad with chickpeas, tomato, and cucumber
• uma salada de grão-de-bico = a chickpea salad

Yes, it can be plural: grãos-de-bico.

But in food contexts, Portuguese often uses the singular form of an ingredient in a more general way, especially after com.

So:

• com grão-de-bico = with chickpeas / with chickpea as an ingredient

If you want to refer more explicitly to individual chickpeas, the plural is possible:

• com grãos-de-bico

In this sentence, the singular sounds natural because it is naming the ingredient in a general sense.

Grão-de-bico is a fixed compound noun, and Portuguese writes it with hyphens.

Its plural is:

• grãos-de-bico

Only the first part changes to plural:

• grão → grãos
• de-bico stays the same

So:

• singular: grão-de-bico
• plural: grãos-de-bico

A rough guide:

• faço ≈ FAH-su
• salada ≈ suh-LAH-duh
• com ≈ kong with a nasal vowel, not a full English m
• grão-de-bico ≈ grãw-duh-BEE-koo

A few key points:

• ç = s sound
• final o in European Portuguese often sounds like u
• ão is a nasal sound with no exact English equivalent
• de in European Portuguese is often reduced, sounding closer to duh or dih than a strong day

The hardest part for most English speakers is grão, because of the nasal ão.