Mañana voy a preparar avena fría y la dejo enfriar en la heladera.

Tomorrow I’m going to make cold oatmeal and let it cool in the fridge.

Breakdown of Mañana voy a preparar avena fría y la dejo enfriar en la heladera.

• yo: I
• en: in
• mañana: tomorrow
• y: and

Questions & Answers about Mañana voy a preparar avena fría y la dejo enfriar en la heladera.

Why does the sentence use “Mañana voy a preparar” instead of “Mañana prepararé”?

Both are grammatically correct and mean “Tomorrow I will prepare…”, but they differ in feel:

• “Mañana voy a preparar…”
  This is the periphrastic future (ir + a + infinitive). It’s more common in everyday spoken Spanish, especially in Latin America. It sounds a bit more informal and immediate, like English “I’m going to prepare…”.

• “Mañana prepararé…”
  This is the simple future. It’s also used, but in many regions it can sound a bit more formal, planned, or sometimes less colloquial in everyday speech.

So the sentence uses “voy a preparar” because it’s the most natural, conversational way to talk about a near-future action.

What exactly does “avena” mean here, and why is there no article (no “la”)?