Can you express how delicious the dish is with the volume of your voice?
Use the volume of your voice to express how good the food is.
声の大きさ︰voice volume
美味しい:good, delicious, tasty
表現する:express
例えば、料理が美味しいほど声を大きくしてほしいのであれば、"If the food is good, speak louder"、"Raise your voice if you think the food is good!"などと加えると良いでしょう。