I would start with two to three times a day. Offer small amounts and make sure there is always fresh water.
The times to feed your pup? When you are home to immediately take her outside. This will aid in house-breaking.
Poodles are finicky eaters. While Cocker Spaniels will eat until everything is gone. That will be interesting. If she gets finicky, try not to let her coax you into canned food or table scraps. When she is hungry, she will eat. Canned food and table scraps will ruin her teeth in the long run.
Enjoy your new puppy!