Preheat the Ninja Foodi on Broil for 10 minutes with the basket in. Dump the Almonds into the basket and broil for 3-5 minutes until lightly roasted. Remove and allow to cool.
Line the square pan with parchment paper. Pour in chocolate chips and sweetened condensed milk. Cover well with foil or another covering that will keep the moisture out. Place the pan on the rack in the low position.
Pour in 2 cups of water. Place the rack into the Ninja Foodi and set the steam function for 5 minutes. Make sure the valve is to the vent position.
While the chocolate mixture is steaming, get your mixins ready. Crush up the Almonds and cut the marshmallows into small pieces if using the large ones.
Remove the pan from the Ninja Foodi and carefully remove the covering so that water does not drip into the chocolate.
Add in the vanilla, salt, cut up marshmallows and chopped almonds. Stir to combine. Get into the corners so the chocolate mixes with the sweetened condensed milk. The fudge will start to thicken as you stir and it cools.
Allow to cool in the fridge for 2-4 hours. Remove the fudge with the parchment and cut into 1" squares. Serve & Enjoy!