I became a HUGE fan of this product for the very reason you're looking. Sometimes I prefer to have a liquid/semi/liquid diet to a degree for a day or so after I experience some IBS issues from food intolerance.
n8kedbrands.com/productsIt's much less expensive in store. Works out to about
$2 or maybe $2.5 a meal. I mix it with almond milk and water.
Edit: In the past I also did the make-your-shake thing as suggested, but the I became to busy/lazy (take your pic) to keep it up. It works though.