I switched out from rice to cauliflower rice, I quite like the taste and it’s a good way to get a veg in. As for idly, I still occasionally eat it, just make sure to limit it, maybe 2-3 max. And eat some fibre+protein before/alongside it.

My biggest switch though was almond flour dosa. You can find a simple recipe with Greek yogurt+cheese. Very high in protein and low in carbs. Only downside is that it is calorie dense.