Switch to the object‐focus affix -in- or i- and move the agent into a genitive phrase. For example:
• Niluto ko ang masarap na hapunan kahapon.
Here niluto is the completed, object‐focus form of luto, and ko marks “I” as the agent.
For yes–no questions, you can either rely on intonation or insert ba after the first word:
• Nagluto ako ng masarap na hapunan kahapon? (rising intonation)
• Nagluto ba ako ng masarap na hapunan kahapon?
To ask what you cooked, use ano:
• Ano ang niluto ko kahapon? (“What did I cook yesterday?”)
Change the verb affix:
• Ongoing/habitual (incomplete aspect): Nagluluto ako ng masarap na hapunan ngayon. (“I am cooking a delicious dinner now.”)
• Future/intended: Magluluto ako ng masarap na hapunan bukas. (“I will cook a delicious dinner tomorrow.”)