We all cook with different styles, tastes and needs in mind. What one person/family thinks as being the ultimate, another will say, huh?
Honestly, the best recipes are your own tried and proven recipes that are your own family's favourites. Learn what is important to change in your own style of cooking, and switch up those old favourites, accordingly.
Eg. butter is still "heart healthy". What is not, is gobs of it. Often time we can stick with the old recipe, just use less butter, and everyone will still like it.
Eg. salt is commonly accepted as not so heart healthy. Again, moderation is key. Salt is not the only way to get flavour in food. Look at other enhancers, particularly herbs, spices, etc.
Eg. more veggies are good when thinking heart healthy. The same old recipes can often be made, by doubling the veggies.
As a suggestion, you could request to meet with a dietitian who could help you understand your new concerns and how to adapt your cooking and menus.
Good Luck! to you and your husband.