Some suggestions:
Pick more meaningful variable names, as they will help you achieve better readability.
Edit your code for proper indentation.

Regardless, I edited the indentation of your program, which you can find below.

def main():
  list = ["hamburger", "steak", "mac and cheese"] #List

  print("What is your favorite main course out of these?: ", len(list))
  print(list) 
  a1 = input("") #variable

  if a1 == "hamburger":
    print("That sounds delicious")
    print("What condoments would you like on your burger?")
    condement = input("")
    list.remove("hamburger")
    print(condement)
  
    while True: #condement question
      print("To clarify, you want", condement, "on your hamburger?")
      cq =input("") #variable 
      if cq == "yes":
        print("sounds good!")
        break
        
      else: 
        continue

  elif a1 == "mac and cheese": 
    while True:
      print("Sounds delious, what kind of cheese would you like on your macaroni?")
      mq = input("")

      print("just to make sure you want", mq, "on your macaroni?")
      mq2 = input()
      if mq2 == "yes":
        print("ok, thanks for clarifying")
        break

      elif mq2 == "no":
        continue
          
  elif a1 == "steak":
    while True:
      print("Sounds good, how would you like it done")
      sq = input("")
      sq2 =print("So you would like your steak done", sq)
       
      if sq2 == "yes":
        print("Sounds good")
      else:
        continue

main()

You could just remove the else statement. It seemed to work like that

I think

tab the 'continue' 2 times from where it is now

Remove the blank line between the "break" and "else"