For the pleasure of vegetarians and vegans tofu can be prepared as a hot and very satisfying dish all year round!
A typical example is Agedashidofu/揚げだし豆腐, tofu first deep-fried and then served in dashi.
As for the dashi use seaweed/konbu dashi!

INGREDIENTS: For 3 people

-Tofu: 2 standard blocks
-Cornstarch: as appropriate
-Shimeji mushrooms: 1 standard pack
-Enoki mushrooms: 1 standard pack
-Nameko: 1 bunch

Note: you can adapt with any ind of mushrooms.

-Seaweed/Konbu dashi: 600 cc/ml/3 cups
-Salt: a little
-Soy sauce: 3 tabelspoons
-Mirin/sweet sake: 1 tablespoon
-Japanese sake: 1 tablespoon
-Grated ginger: 1 tablespoon
-Yuzu koshio: a little
-Cornstach dissolved in water: as appropriate
-Grated daikon: as appropriate
-Chopped leeks: as appropriate

RECIPE:

-Wrap tofu in kitchen paper and leave it for an hour for excess water to be absorbed (about an hour).
-Place tofu on a dry wooden cutting board. Place a plate and weight on top and enough water will come out. Dry in kitchen paper.

-In a large pan pour the dashi, salt, soy sauce, mirin, sake, ginger, and yuzu kshio.
Bring to light boil.
Drop the mushrooms in.

-When the mushrooms are cooked to satisfaction pour the cornsatrch dissolved in water. Stir until you have obtained a smooth texture. Keep hot.

-Cut the tofu in adequate large bit sized cubes (you could have done it beforehand and take out excess water)>
Roll them in cornstarch. Shake away excess cornstarch powder.

-Fry tofu cubes in shallow oil until they have attained a very light bron color.
Take ou and pace in a dish.
Pour the sweet and sour mushrooms all over.
Decorate/season with grated daikon and chopped leeks.
Serve immediately!

You may also place the lot over freshly steamed rice!

RECOMMENDED RELATED WEBSITES

Tokyo Food File by Robbie Swinnerton, Green Tea Club by Satoshi Nihonyanagi in Shizuoka!, Mind Some by Tina in Taiwan, Le Manger by Camille Oger (French), The Indian Tourist, Masala Herb by Helene Dsouza in Goa, India, Mummy I Can Cook! by Shu Han in London, Pierre.Cuisine, Francescannotwrite, My White Kitchen, 47 Japanese Farms Through The Eyes of Its Rural Communities, Foodhoe, Chucks Eats, Things that Fizz & Stuff, Five Euro Food by Charles,Red Shallot Kitchen by Priscilla,With a Glass, Nami | Just One Cookbook, Peach Farm Studio, Clumsyfingers by Xethia, PepperBento,Adventures in Bento Making, American Bent, Beanbento, Bento No, Bento Wo Tsukurimashou, Cooking Cute, Eula, Hapabento , Happy Bento, Jacki’s Bento Blog, Kitchen Cow, Leggo My Obento, Le Petit Journal Bento & CO (French), Lunch In A Box,
Susan at Arkonlite, Vegan Lunch Box; Tokyo Tom Baker, Daily Food Porn/Osaka, Only Nature Food Porn, Happy Little Bento, The Herbed Kitchen, J-Mama’s Kitchen, Cook, Eat, Play, Repeat, Bento Lunch Blog (German), Adventures In Bento, Anna The Red’s Bento Factory, Cooking Cute, Timeless Gourmet, Bento Bug, Ideal Meal, Bentosaurus, Mr. Foodie (London/UK), Ohayo Bento,

Must-see tasting websites:

-Sake: Tokyo Through The Drinking Glass, Tokyo Foodcast, Urban Sake, Sake World
-Wine: Palate To Pen, Warren Bobrow, Cellar Tours, Ancient Fire Wines Blog
-Beer: Good Beer & Country Boys, Another Pint, Please!, Beering In Good Mind: All about Craft Beer in kanzai by Nevitt Reagan!
-Japanese Pottery to enjoy your favourite drinks: Yellin Yakimono Gallery