Cooking Techniques
PanPotPlates
International Rustic Vegetable Bake
By PanPotPlates Test KitchenReviewed by PanPotPlates Editorial TeamPublished Apr 8, 2026 · Updated May 11, 2026
International
105 mins
slowcookerfreezablehighproteininstantpotonepothealthyfamilyfriendlymealprepvegetariancomfortfood
International Rustic Vegetable Bake is a practical PanPotPlates recipe built for dependable weeknight cooking.
Prep
15 min
Cook
90 min
Total
105 min
Servings
6
Difficulty
easy
Cuisine
International
Ingredients
Servings
6
- 1 cup dried lentils, rinsed and drained
- 2 medium carrots, peeled and diced
- 1 red bell pepper, diced
- 1 yellow bell pepper, diced
- 1 small zucchini, diced
- 1 cup green beans, trimmed and cut into 1-inch pieces
- 1 medium onion, chopped
- 3 cloves garlic, minced
- 1 (14 oz) can diced tomatoes with juice
- 2 cups vegetable broth
- 1 tablespoon tomato paste
- 1 teaspoon smoked paprika
- 1 teaspoon ground cumin
- 1/2 teaspoon dried thyme
- 1/2 teaspoon dried oregano
- Salt and black pepper, to taste
- 2 tablespoons olive oil
- 1/4 cup chopped fresh parsley
- 1/2 cup shredded mozzarella or vegan cheese (optional)
Instructions
-
If using Slow Cooker: Heat olive oil in a large skillet over medium heat. Add onion and garlic, sauté for 3-4 minutes until softened.
-
Add bell peppers, carrots, zucchini, and green beans; cook for another 3-4 minutes, stirring occasionally, until vegetables begin to soften.
-
Transfer sautéed vegetables to the slow cooker. Add rinsed lentils, diced tomatoes with juice, tomato paste, vegetable broth, smoked paprika, cumin, thyme, oregano, salt, and pepper. Stir to combine evenly.
-
Cover and cook on low for 6-7 hours or on high for 3-4 hours, until lentils and vegetables are tender and the bake has thickened.
-
If using Instant Pot: Press 'Sauté' and heat olive oil. Add onion and garlic, cooking 3-4 minutes until fragrant. Add bell peppers, carrots, zucchini, and green beans, cooking 3-4 minutes and stirring occasionally.
-
Cancel 'Sauté' mode. Add lentils, diced tomatoes, tomato paste, vegetable broth, and seasonings. Stir well.
-
Lock the lid and set valve to sealing. Cook on 'Pressure Cook' (Manual) high for 15 minutes.
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When cooking ends, allow natural pressure release for 10 minutes, then carefully release remaining pressure.
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Open lid and stir. If desired, sprinkle shredded mozzarella or vegan cheese on top and cover until melted.
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Garnish with fresh parsley before serving.
-
Let cool completely before freezing, or portion into meal prep containers for easy freezer-friendly dinners.
Tips
Pan Or Pot Required
This International Rustic Vegetable Bake is thoughtfully designed for easy, one-pot cooking, suitable for busy families seeking wholesome meals.
Cookware Size Guidance
For a recipe serving six people, a slow cooker or Instant Pot with at least 6-quart (5.7-liter) capacity is ideal to accommodate the vegetables, lentils, liquids, and seasonings without overcrowding.
Cookware Swap Guidance
This rustic vegetable bake is versatile and can be adapted if a slow cooker or Instant Pot isn't available.
Leftovers Quality
Reheat gently and add a splash of liquid when needed to keep the texture moist and tender.
Frequently Asked Questions
- Can I make International Rustic Vegetable Bake ahead?
- Yes. Prep the ingredients or cook the full dish ahead, then reheat gently so the texture stays close to freshly made.
- What cookware works best?
- Use a oven-safe skillet or casserole dish and avoid crowding so the recipe cooks evenly.
- How do I know it is done?
- Follow the recipe timing, then check the main ingredient for tenderness, bubbling, browning, or safe doneness before serving.
- Can I adjust the seasoning?
- Yes. Taste near the end and adjust salt, acid, herbs, or heat in small amounts.
This recipe offers flexibility to suit dietary needs and seasonal ingredient availability:
- Lentils: Substitute with canned chickpeas, black beans (adjust liquid and cooking times accordingly), or split peas for similar texture. Check packaging to ensure gluten-free options if necessary.
- Vegetables: Replace zucchini or bell peppers with seasonal choices like eggplant, sweet potato, or butternut squash. Frozen mixed vegetables are also convenient and retain flavor.
- Vegetable Broth: Bouillon cubes are an effective alternative.
- Tomato Products: Fresh tomatoes combined with tomato sauce or puree can replace canned diced tomatoes and tomato paste. Roasted red pepper puree adds a smoky twist.
- Cheese (Optional): For vegan or dairy-free diets, omit cheese or substitute with plant-based alternatives. Nutritional yeast can impart a cheesy flavor without dairy.
- Olive Oil: Avocado oil or other neutral oils are good substitutions, especially for allergies or preferences.
Adjust seasoning after substitutions to maintain a well-balanced flavor profile. These swaps preserve the recipe’s easy, family-friendly, and nutritious qualities.
Storage and Reheating
Cool International Rustic Vegetable Bake before storing. Refrigerate leftovers in an airtight container for up to 4 days.
Freeze portions for longer storage when the ingredients are freezer-friendly. Reheat gently with a splash of liquid if the dish looks dry.
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