The English phrase "Italian meal" is correct as written since English capitalizes the proper noun-related adjective Italian but not the common noun meal.
Buon appetito! is an Italian equivalent of the English phrase "Have a great meal!" The pronunciation of the masculine singular phrase -- which translates literally as "Good appetite!" -- will be "BWO-NAP-pe-TEA-to" in Italian.
Buon appetito, uomo mio! is an Italian equivalent of the English phrase "Enjoy your meal, my man!" The phrase translates literally as "(Have a) good appetite, my man!" in English. The pronunciation will be "bwo-NAP-pey-TEA-to WO-mo MEE-o" in Pisan Italian.
Grazie per un pasto delizioso! is an Italian equivalent of the English phrase "Thank you for a delicious meal!" The courtesy also translates as "Thanks for one delicious meal!" in English. The pronunciation will be "GRA-tsyey pey-roon PA-sta DEY-lee-SYO-so" in Italian.
Buon appetito is an Italian equivalent of the English phrase "good appetite." The masculine singular adjective and noun may be used to describe someone's healthy appetite or to wish somebody an enjoyable meal. The pronunciation will be will be "bwo-NAP-pey-TEE-to" in Italian.
"The meal was delicious" in English means Il piatto era squisito in Italian.
Cibi deliziosi is an Italian equivalent of the English phrase "delicious meals." The masculine plural phrase models a difference between the two languages whereby Italian tends to place adjectives after, not before, their nouns except for emphasis. The pronunciation will be "TCHEE-be DEY-lee-TSYO-see" in Italian.
Pranzo. (Apparently. Check The Italian meal: Information from Answers.com.)
Un pasto is an Italian equivalent of the English phrase "a meal." The masculine singular cardinal number/indefinite article and noun also translate into English as "one meal." The pronunciation will be "oon PA-sto" in Italian.
Una cena italiana deliziosa is an Italian equivalent of the English phrase "a delicious Italian dinner." The feminine singular phrase also translates into English as "one delicious Italian dinner." The pronunciation will be "OO-na TCHEY-na EE-ta-LYA-na DEY-lee-TSYO-sa" in Italian.
Buona Pasta
Buon pasto is an Italian equivalent of 'good meal'. The words in Italian are pronounced 'bwohn PAH-stoh'. The masculine adjective 'buono' means 'good'. The masculine gender noun 'pasto' means 'meal'.
There is nothing actually incorrect about the phrase "lunch meal", and a rapid search will find a number of uses of the phrase. There is, however, no good reason for using it, as lunch is and has always been a meal. The phrase is redundant and not idiomatic. Use of this phrase might give the erroneous impression that the word "lunch" refers to a time of day, rather than a meal.