Some versions of this recipe omit the green beans and reduce the rolled oats to 1/2 cup if you prefer a softer texture or are not using the beans.
While the original recipe suggests microwaving vegetables to soften them, you can also sauté the onions and peppers in a pan for deeper flavor. Ensure all vegetables are cooled slightly before mixing to prevent the patties from becoming too soggy.
Uncooked patties can be refrigerated for up to 2 days or frozen for up to 1 month. Cook from frozen by adding an extra minute or two to the cooking time on each side.
Squeezing the spinach as dry as possible is crucial for the patties to hold together. Excess moisture is the main reason veggie burgers fall apart.