Grilled Banana French Toast
https://www.bbcgoodfood.com/recipes/spiced-banana-honey-french-toast
You can use yoghurt instead of cream, like Catherene did below.
French Toast: Photo and food styling by Catherene Wilson @catherenewilson
Otherwise, try the Banana, Bacon & Blueberry French Toast recipe from (p167) Posh Sandwiches, by Rosie Reynolds.
Heat a large frying pan over a medium heat and fry bacon until perfectly crispy.
Spread 2 slices of bread with peanut butter and sandwich slices of banana in between them (make 2).
Crack 4 medium eggs into a large, shallow dish; add 100ml milk, 1 tsp vanilla extract, and 1 tsp maple syrup. Whisk until combined.
Soak the sandwiches in the egg mixture for 5 minutes, turning them a few times.
Meanwhile, make a blueberry sauce, by heating 100g blueberries with 2 Tbsp maple syrup in a small saucepan until the berries start to pop. Allow the sauce to bubble for about 1 minute to reduce the sauce, keeping some berries intact. Set aside.
Heat a knob of butter and a little olive oil in a large frying pan over medium heat. Once bubbling, fry the sandwiches for 2-3 minutes, then turn (add a little more butter and oil and baste as needed).
Serve it all together.
(Recipe reworded but taken from (p167) Posh Sandwiches; Over 70 recipes, from Reubens to banh mi, by Rosie Reynolds. Quadrille Publishing, London 2018)