The Gut-Friendly Meal Prep Sunday Guide

Sunday habit: a gut-friendly meal prep that sets you up for the entire week ahead.

This week's post is your Reset Meal Prep guide, built around one hero recipe that does most of the heavy lifting for you: a Sheet Pan Chicken & Roasted Root Vegetables that comes together in 40 minutes, uses one pan, and gives you the foundation for four different meals throughout the week.

Sheet Pan Lemon Herb Chicken & Roasted Root Vegetables

Gluten-Free · Dairy-Free · Anti-Inflammatory · Paleo · 40 Minutes · One Pan

Bone-in, skin-on chicken thighs (the most forgiving, flavorful cut for sheet pan cooking) roasted alongside sweet potatoes, parsnips, carrots, and red onion — all tossed in a lemon herb marinade built on olive oil, garlic, rosemary, thyme, and turmeric.

Yield: 4 servings

Prep Time: 15 minutes

Cook Time: 40 minutes

Total Time: 55 minutes

Ingredients

For the chicken & vegetables:

• 4 bone-in, skin-on chicken thighs
• 2 medium sweet potatoes, peeled and cut into 1-inch cubes
• 2 medium parsnips, peeled and cut into 1-inch pieces
• 3 medium carrots, peeled and cut into 1-inch pieces
• 1 large red onion, cut into wedges
• 3 tbsp extra-virgin olive oil
• 1 tsp sea salt
• ½ tsp black pepper

For the lemon herb marinade:

• 3 tbsp extra-virgin olive oil
• 4 garlic cloves, minced
• Zest and juice of 1 large lemon
• 1 tsp fresh rosemary, finely chopped (or ½ tsp dried)
• 1 tsp fresh thyme leaves (or ½ tsp dried)
• ½ tsp ground turmeric
• ½ tsp smoked paprika
• ½ tsp sea salt
• ¼ tsp black pepper

Instructions

1.Preheat the oven to 425°F (220°C). Line a large rimmed baking sheet with parchment paper.

2.Make the marinade: In a small bowl, whisk together the olive oil, minced garlic, lemon zest, lemon juice, rosemary, thyme, turmeric, smoked paprika, sea salt, and black pepper until well combined.

3.Marinate the chicken: Place the chicken thighs in a large bowl or zip-top bag. Pour half the marinade over the chicken and toss to coat thoroughly. Set aside to marinate for at least 10 minutes while you prep the vegetables (or marinate overnight in the refrigerator for deeper flavor).

4.Season the vegetables: In a large bowl, toss the sweet potatoes, parsnips, carrots, and red onion with the olive oil, sea salt, and black pepper. Spread them in an even layer on the prepared baking sheet.

5.Add the chicken: Nestle the marinated chicken thighs skin-side up among the vegetables. Drizzle the remaining marinade over the vegetables.

6.Roast: Transfer to the preheated oven and roast for 35–40 minutes, until the chicken skin is deep golden brown and crispy, the internal temperature of the chicken reaches 165°F, and the vegetables are tender and caramelized at the edges.

7.Rest and serve: Let the pan rest for 5 minutes before serving. Garnish with fresh parsley and an extra squeeze of lemon juice.

Storage: Store leftovers in an airtight container in the refrigerator for up to 4 days. The chicken and vegetables reheat beautifully in a 350°F oven for 10 minutes or in a skillet over medium heat.

Why This Recipe Works for Your Gut

Bone-in, skin-on chicken thighs are one of the richest dietary sources of collagen — the structural protein that supports gut lining integrity and helps repair the intestinal barrier. When roasted, the collagen in the bones and connective tissue begins to break down, making it more bioavailable. Sweet potatoes are one of the most gut-supportive root vegetables available, providing a rich source of soluble fiber (including pectin) that feeds beneficial gut bacteria and supports regular bowel movements. Parsnips and carrots are high in inulin — a prebiotic fiber that selectively feeds Lactobacillus and Bifidobacterium strains in the gut microbiome. Garlic contains allicin and fructooligosaccharides (FOS), both of which have potent antimicrobial and prebiotic properties that support a balanced gut microbiome. Turmeric provides curcumin, one of the most well-researched anti-inflammatory compounds available, and the black pepper in the marinade increases its bioavailability by up to 2,000%.

Bonus Recipe: Lemon Tahini Drizzle (Fall Reset Version)

5 Minutes · Gluten-Free · Dairy-Free · Vegan

You've seen this drizzle before — it appeared on the Lemon Herb Baked Salmon post and has been a reader favorite ever since. For the fall reset version, a pinch of smoked paprika and a teaspoon of apple cider vinegar are added, giving it a slightly warmer, earthier flavor that pairs beautifully with the roasted root vegetables.

Ingredients:

• ¼ cup smooth tahini
• 2 tbsp fresh lemon juice
• 1 tbsp apple cider vinegar
• 1 tbsp extra-virgin olive oil
• 1 small garlic clove, minced
• ¼ tsp smoked paprika
• Pinch of sea salt
• 2–4 tbsp warm water (to thin to desired consistency)

Instructions: Whisk all ingredients together in a small bowl, adding warm water one tablespoon at a time until the drizzle reaches a pourable consistency. Taste and adjust seasoning. Drizzle generously over the finished sheet pan and serve.

Storage: Store in a sealed jar in the refrigerator for up to 5 days. Stir well before each use.

Your Fall Reset Meal Prep Plan: 4 Meals from 1 Sheet Pan

This is where the magic happens. One Sunday sheet pan becomes four completely different gut-friendly meals throughout the week — with minimal additional prep required.

Your Fall Reset Sunday Prep Timeline

Use this simple timeline to get everything done in under an hour on Sunday afternoon:

The Fall Reset Mindset

Eating well doesn't have to be complicated. It doesn't require a new protocol every season, a cabinet full of supplements, or hours in the kitchen every night.

It requires one good Sunday habit.

One sheet pan. One hour. Four meals. A gut that feels supported, a body that feels nourished, and a week that starts with intention instead of scrambling.

That's the fall reset. And it starts this Sunday.

Ready for a Full Week of Gut-Friendly Meals Like These?

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Here's to a strong, nourished, gut-healthy fall.