Veggie casserole

Prep Time: 20 minutes
Cook Time: 55 minutes
Total Time: 1 hour 15 minutes

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Recipe Intensities (At a Glance)

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Ingredients

For the Casserole Base

• 2 tbsp olive oil (or avocado oil)

• 1 large yellow onion, diced

• 3 cloves garlic, minced

• 2 medium carrots, sliced into ½-inch rounds

• 2 medium parsnips, sliced into ½-inch rounds

• 1 medium sweet potato, peeled and cut into ½-inch cubes

• 1 red bell pepper, diced

• 8 oz cremini mushrooms, quartered

For the Lentils & Liquid

• 1 cup brown or green lentils (rinsed, picked over)

• 1 can (14.5 oz) diced fire-roasted tomatoes, with juices

• 4 cups vegetable broth (low sodium)

• 1 tbsp tomato paste

• 1 tsp smoked paprika

• 1 tsp dried thyme

• ½ tsp ground black pepper

• ¾ tsp salt (plus more to taste)

For the Topping (Optional but Recommended)

• ½ cup whole wheat breadcrumbs or panko

• ¼ cup grated Parmesan cheese (or nutritional yeast for vegan)

• 1 tbsp olive oil

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Instructions

Phase 1: Sauté the Aromatics (Intensity: Low-Medium)

1. Preheat your oven to 375°F (190°C).

2. Heat 2 tbsp olive oil in a large, oven-safe Dutch oven or heavy-bottomed pot over medium heat.

3. Add the diced onion and cook for 4–5 minutes, stirring occasionally, until softened and translucent.

4. Add the minced garlic and cook for 1 minute until fragrant (do not burn).

Phase 2: Brown the Vegetables (Intensity: Medium)

5. Add the carrots, parsnips, sweet potato, red bell pepper, and mushrooms.

6. Cook for 8–10 minutes, stirring only every 2–3 minutes. Let them sit to develop browning—that’s where flavor comes from.

7. The mushrooms should release their liquid, then start to caramelize at the edges.

Phase 3: Build the Casserole (Intensity: Low)

8. Stir in the tomato paste, smoked paprika, dried thyme, black pepper, and salt. Cook for 1 minute to toast the spices.

9. Add the rinsed lentils, fire-roasted tomatoes (with juice), and vegetable broth. Stir well, scraping up any browned bits from the bottom of the pot.

10. Bring to a gentle simmer, then cover the pot and transfer to the preheated oven.

Phase 4: Bake (Intensity: Zero – Hands Off)

11. Bake covered for 35 minutes.

12. Remove the pot from the oven, stir once, then check the lentils. They should be tender but still have a slight bite.

Phase 5: Add the Crispy Topping (Intensity: Low)

13. In a small bowl, mix breadcrumbs, Parmesan (or nutritional yeast), and 1 tbsp olive oil.

14. Sprinkle the topping evenly over the casserole.

15. Return to the oven uncovered for 10–12 minutes, until the top is golden brown and the edges are bubbling.

Phase 6: Rest & Serve

16. Let the casserole rest for 5 minutes out of the oven. This allows the lentils to absorb any remaining liquid and the flavors to meld.

17. Garnish with fresh parsley or a drizzle of balsamic glaze if desired.

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The Last of the Recipe (Storage & Make-Ahead Tips)

Refrigeration: Store in an airtight container for up to 5 days. The casserole thickens as it sits; add a splash of broth or water when reheating.

Freezing: Freeze in portion-sized containers for up to 3 months. Thaw overnight in the fridge before reheating in a 350°F oven or microwave.

Make ahead: Assemble through Step 10 (before the oven), cool, and refrigerate for up to 24 hours. Add 10–15 minutes to the covered baking time when cooking from cold.

Leftover remix: Mash leftovers into veggie burgers, stuff into bell peppers, or thin with broth for a quick soup.

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Nutrition Information (Per Serving, ~1 generous cup)

*Approximate, based on 6 servings. Topping with breadcrumbs + Parmesan included.*

Note: Nutrition facts are estimates. Use low-sodium broth to reduce sodium further. Omit Parmesan for a vegan, lower-sodium option.