01 - In a large bowl, mash the avocado gently, keeping some pieces intact for added texture.
02 - Add cooled rice, shredded cheddar cheese, eggs, flour, green onions, garlic powder, salt, pepper, and herbs to the bowl. Mix thoroughly until the mixture holds together.
03 - Warm 1 tablespoon of oil in a large nonstick skillet over medium heat.
04 - Using approximately 1/4 cup of mixture for each, form compact patties—aim for about 8 cakes.
05 - Place patties in the skillet without overcrowding. Cook each side for 3 to 4 minutes, until golden brown and crispy. Cook in batches if necessary, adding more oil as required.
06 - Transfer rice cakes onto a paper towel to drain. Serve warm, optionally accompanied by sour cream or a squeeze of lime.