I tried giving ginataang mashed kalabasa with malunggay to my toddler and I was scared when I witnessed she almost got choked. Maybe because of the malunggay? Should I just powderized the malunggay or tear it in small pieces before cooking? Better ideas?

You might want to cut it in really small pieces using a kitchen scissor. Make it as tiny as possible. Or if you want, you can puree a portion of the kalabasa together with the malunggay. Thereafter, mix the mashed kalabasa and pureed kalabasa + malunggay. The purpose of this is to still give your kid thick foods that can aid in speech development. Chewing is a precursor to talking so the more a food has texture, the better. Just make sure you give your child what he/she can eat properly.