Given the task definition and input, reply with output. In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

Brown meat with onions and peppers in large nonstick skillet.,______,or until slightly thickened, stirring occasionally.,Meanwhile, toast bread.,Add corn to meat mixture; cook and stir 3 min.,or until heated through.,Serve over toast slices topped with cheese and cilantro.
Stir in tomatoes and taco seasoning; simmer on medium-low heat 15 min.