I mostly eat chicken, turkey and small amounts of beef. I used to eat a lot of red meat but have limited it in the past 3 or 4 years. Gluten free turkey subs sound OK if the bread is not bad but I've never had one. I haven't had a milk shake in a long time but when we want a treat, my wife and I head for the local Dairy Queen and get a small Blizzard. I can't do that too often because of the amount of sugar and calories in them. Do you like eggs and cheese? They and some other foods have a surprising amount of sodium in them and may be helpful to you for maintaining your weight. Here's a list I found - Top 25 Foods that Add the Most Sodium to Your Diet: https://sodiumbreakup.heart.org/top_25_foods_that_add_the_most_sodium_to_your_diet

Hi, testudo, I've been working hard to gain weight not lose more since an unintended wt loss of 30 lbs over the past yr+. While my diabetes & kidney (ckd) diet, along with exercise has improved my A1c and Gfr numbers, adding high caloric foods that mesh with my diet has proved problematic for me. Stable for years at 125 lbs and 5'8", I am now drinking 1/2 bottle of Boost at 2 meals/day and making myself eat a "few more spoon/forkfuls" at each meal. It is frustrating to say the least but I have managed to regain 5 lbs over this period. So much is written about wt loss and so little about "proven ways" to maintain or regain weight needed. Best wishes on this journey. To add to my challenge is that while more protein is often recommended for those of us with osteoporosis, I need to rely on plant protein vs red meat because of protein issues with ckd. I do make veggie based protein smoothies and rely on raw veggies and unsalted nuts for most snacks. Due to high sugar/salt content of many fruit and veggie juices, I focus more on the raw items rather than juices. If I can locate a couple of sites searched months ago on "healthy ways to gain weight", I'll share them here. Best to you and others who find themselves in this pretty select minority group.