Spinach Ricotta Shells (Print Version)

# Ingredients:

→ Core Ingredients

01 - Medium onion, diced (1)
02 - Fresh spinach leaves (4 cups)
03 - Jumbo pasta shells, about 12 to 14
04 - Garlic cloves, minced (2)
05 - Olive oil, extra virgin (1 tablespoon)

→ Cheesy Mixture

06 - Mozzarella, shredded (1 cup)
07 - Ricotta cheese (1 cup)
08 - Egg, large (1)
09 - Grated Parmesan cheese (½ cup, plus extra for garnish)

→ Flavors & Sauce

10 - Black pepper (½ teaspoon)
11 - Salt (½ teaspoon)
12 - Marinara sauce (1½ cups)
13 - Optional: Fresh basil for topping

# Instructions:

01 - Set your oven to 375°F and cook the pasta shells following the package instructions until they're just tender.
02 - Warm up olive oil in a big pan. Throw in the diced onion, cooking it until it softens (takes 3-4 minutes). Add in the garlic and let it cook for another minute.
03 - Toss spinach into the skillet and stir until it wilts down, which should take about 2 minutes.
04 - Stir together the cooked spinach, ricotta, mozzarella, Parmesan, egg, salt, and pepper in a large bowl until it's all well combined.
05 - Pour about half the marinara sauce into the base of an 8x8 or 9x9 dish, spreading it out evenly.
06 - Stuff each pasta shell full of the spinach and cheese mixture. Arrange them neatly into the sauced dish.
07 - Spoon over the rest of the marinara sauce, then pop it in the oven for 20 to 30 minutes until it's completely heated through.
08 - Sprinkle with extra Parmesan and a bit of fresh basil if you'd like, then enjoy right away.

# Notes:

01 - You can prepare it ahead, store in the fridge, and bake later.
02 - Perfect as a main dish for vegetarians.
03 - Reheat any leftovers in either the oven or microwave.