Tanto buon cibo! is an Italian equivalent of the English phrase "lots of good good!"
Specifically, the masculine adjective tanto is "lots, lots of, so much". The masculine adjective buono* means "good". The masculine noun cibo translates as "food".
The pronunciation will be "TAN-toh bwohn TCHEE-boh" in Italian.
*The final vowel often drops before a noun which begins with a vowel.
"Good food!" in English is Buon cibo! in Italian.
"Good" in English is buono in Italian.
"It is good!" in English is È buono! in Italian.
"Good! And you?" in English is Buono! E tu? in Italian.
"Good! How are you?" in English is Bene! Come stai? in Italian.
"Good night!" in English is Buonanotte! in Italian.
"Good vacation" in English is buona vacanza in Italian.
"Good health" in English is buona salute in Italian.
"Good artist!" in English is Buona artista! in Italian.
"Good head!" in English is Buona testa! in Italian.
"Good fortune" in English is buona fortuna in Italian.
"Good lover" in English is buon amante in Italian.