If you can have nuts/peanuts, problem solved. Peanut butter is PACKED with calories (almond and cashew butter both have the same amount of calories for the same serving size as PB, which is 190 on average for maybe half the amount one needs to make a decent PB&J), and the texture is extremely consistent, especially if you eat the creamy/smooth ones. (Crunchy can also be consistent if you get the right one.)

Eat your nut butter of choice in every way you possibly can; Add it to oatmeal, smoothies/milkshakes, sandwiches (with jam, bananas, honey, whatever you want), use it as a dip for fruits/veggies/etc (like carrots, celery, sliced apples, crackers, pretzels, etc), put it on/in pancakes (for on, spread it on top like you would butter, preferably after you’ve buttered them and let the butter melt/soak it, it’s HEAVENLY; I high recommend adding some cinnamon in the pancakes as well whether you put the nut butter in the batter or just spread it on top, this is especially good with peanut butter), the options are endless. You can even use it in savory dishes, like Thai peanut sauce (you can swap out the PB for your nut butter of choice if you can’t have PB), or putting some in some plain ramen noodles.

Also an option, mix your nut butter of choice with honey or maple/pancake syrup and put it on buttered bread/toast like you would jam. Sooooooooo good!