Bostin' brekkie menu! Dependant on size, anywhere in France a plain croissant is usually approx. 25g + whatever if you have jam, pains au chocolat are around 30g and a chausson au pommes nearer 40g. Don't bolus upfront for any of these - they are FULL of butter which slows the carbs down quite a lot. One slice of a 'small tin loaf sized' brioche (approx 4ins square by 0.5ins depth) is around 20g - again, we have to allow for the jam cos it's nice, but a tad boring on its own. If they are separate mini brioches then it's anyone's guess, I'd have to eyeball and guess myself. Almond tarte - difficult - it will be a pastry tart, full of creme patisserie and no doubt bloody delish but carbs might well be in the stratosphere.
None of the egg dishes except the one with the brioche, appears to have much in the way of carbs. (Odd that they say 'black pudding' really - it's 'baudin noir' in French LOL) However - if the eggs Florentine are served on half a toasted English muffin as the dish (and Eggs Benedict) would usually be served sitting upon - the half muffin will be at least 20g. I could happily eat any of their Oeuf proposals.
I don't want the pancake though - Grenadine is pomegranate syrup - and eek - grapefruit jelly - clueless about the carbs in either the pancake or the accompaniments.
Also keep all of the fruit juices away - a very small glass (150ml) of OJ is at least 10g if not 15g of carb and is usually used as hypo remedy! - so just feed me a grande tasse (or breakfast bowl) of your excellent café au lait, SVP, m'sieur ! Mercy bucket.
As I said - Just enjoy! - and pay the price you might have to, after.
When eating out anywhere - never bolus until you actually have whatever it is in front of you because as has been said portion sizes might differ, there may be an unforseen delay in serving you - the chef might have gone hypo in the kitchen, or anything! (Yes, that sometimes happens, No 1 daughter works in a mega-bust pub kitchen with several fellow chefs - two of whom are T1s! - and have been known to do just that on occasion)