Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make chiles rellenos [title] Make the filling. [step] You will make two fillings: one comprised of, and the other of cheese. [substeps] Meat filling-fry the ground beef in a standard non-stick pan.

Ending1: Chop up the tomato and one of the onions. Add the chopped ingredients to the pan when the meat is fully brown. Ending2: Olive oil and tomato paste-fry the ground beef in a pan with olive oil and tomato paste. Ground beef is added to flavor the chiles. Ending3: Heat the pan over medium or low heat until it starts to brown. Turn off the heat when the pot is almost to the place where it should be. Ending4: Mix each filalie with water to two eggs. Add the beef fillings to a small saucepan on the stove or on a small burner.

Answer format: ending1/ending2/ending3/ending4