The Melf's Minute Meteors spell states (XGE, page 161, emphasis mine):
[...] When you cast the spell—and as a bonus action on each of your turns thereafter—you can expend one or two of the meteors, sending them streaking toward a point or points you choose within 120 feet of you. [...]
My question is: If I cast Melf's Minute Meteors on the first turn of combat, how does it interact with another spell with a casting time of 1 action on the subsequent rounds of combat?
Could I for example, on the second round of combat, cast a Scorching Ray (PHB, page 273; SRD) followed by two of the meteors for a total of five fire blows? Three attack rolls and two Dexterity saving throws. Is that all correct?