Meal Replacement Shakes

I am currently taking a Vega One shake for breakfast. I've never been able to eat much of anything in the mornings without trouble due to a medical condition. I started taking meal replacment shakes and they work great! I actually have energy now in the mornings and feel like myself. Normally it takes me until after lunch until I feel normal due to lack of breakfast. So, this is working out great and my weight loss is continuing.

Curious if anybody else takes shakes for any of their meals. Any tips on what's the healthiest and cleanest? Vega One is quite expensive, but I really like the exceptional ingredients.

Any similar lower cost alternatives?