This creamy asparagus and mushroom casserole is the picture of spring side dishes. It uses up loads of that delicious, just-from-the-garden asparagus, fresh mushrooms, and leftover hard-boiled eggs. (Confession: My eggs had pretty pastel spots from getting dyed just days before, but this dish is a great way to make sure they don’t go to waste!) I’m a big fan of this casserole because it delivers such a big serving of vegetables, but it’s also so flavorful, I would eat it as a meal. The smoked paprika brings a lot of flavor to the white sauce, so take a few taste samples as you simmer the sauce and add more to your liking. Creamy asparagus, mushroom casserole Ingredients 2 bunches asparagus 8 ounces sliced mushrooms, with dirt brushed off 2 1/2 tbsp butter + 1/2 tbsp butter 1/4 cup onion, finely copped 2 tsp Dijon mustard 2 1/2 ounces shredded…