There Are Pandas, and Then There Are Pandas.
And this isn't either of them! The Pandas we're talking about here, are watches, not bears. And what got me thinking about them (again) was a link posted this morning by @cm.rook who pointed a few of us to the very attractive (and not terribly priced) Yema "Rallygraph" Panda which, in it's most traditional arrangement, looks like the one on the left, but can also be had in the version on the right: The model on the left is a true Panda, while the model on the right is called a reverse Panda. The reason for that distinction is clear--Panda bears, only come in the first arrangement. Now at this point, everyone should be thinking about the most well-know Panda, The Rolex Panda, which is actually a Daytona, and among Rolex Daytonas, the most famous of which is the Paul Newman Daytona, which was famous first, because it was Paul's, and second because it sold at auction for $17.8 million (US Dollars). The story of that auction is well-known so I'll only...
Nov 8, 2019
If you're looking for whole meat-like, vital wheat gluten is the easy answer. You can go to an Asian grocer and find mock duck, mock chicken, and so on. It's basically wheat gluten flavored with soy sauce, msg, and other bombastic flavorings. Mass-produced soy sauce has no fish component but do check the package for non-veganness. You could do it yourself, of course, from vital wheat gluten flour, but you're behind schedule at this point. Or you could just get Seitan slabs and call it steak.
While you're at the Asian grocer there are also many more forms of soy and wheat gluten. There's stuff like puffed Seitan, which can be a lot of fun in a stew-like sauce. In any event, most of these do not need much cooking, just warming. So you'll be building the base/sauce in the slow cooker, and dumping them in at the end to warm.
Not a main dish, but this is my favorite, robust, as-good-as-meat vegan recipe, it's a vegan pate made from mushrooms and nuts: http://www.foodandwine.com/recipes/porcini-and-pecan-pate Don't even need the slow cooker for this one.
As for a slow cooker main at this late stage, if you have access to an oven, make eggplant bacon https://minimalistbaker.com/crispy-eggplant-bacon/, while making a barbecue sauce http://thewholeserving.com/wp/homemade-vegan-barbeque-sauce/, in which you will braise beans and vital wheat gluten chunks or seitan in the slow cooker. Top it off with the bacon when done.