Meet Diamond Bar's Best Meal Prep — Powered by
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- ✔︎ Chef-Verified
- ✔︎ 4.8-Star Average
- ✔︎ 20 K+ Meals Delivered
Top 10 Meal Prep Services in Diamond Bar

11. Chef Laura Meal Prep
Chef Laura5.0 (28)
Chef Laura Fabiola Diaz brings the heart of her family's Perla Mexican Cuisine into meal prep that delivers real flavor and nourishment without the restaurant wait - each week creating dishes inspired by regional Mexican traditions and prepared with the same care she puts into her restaurant. Her rotating menu offers both beloved classics and lighter, healthier takes on Mexican cuisine, bringing the warmth and richness of her kitchen to your table in a way that actually fits modern life.

12. Chef Jonathan Meal Prep
Executive Chef Jonathan5.0 (25)
Gourmet • Personalized • Locally-sourced
Chef Jonathan graduated with honors from the Culinary Institute of America, then sharpened his craft in some of the nation’s most celebrated kitchens. From Sous Chef at Four Seasons Hotel Denver to Chef de Partie at Montage Laguna Beach, he’s spent 15 years perfecting the art of elevated yet approachable cuisine. Today he designs bespoke menus for celebrities and pro athletes who expect restaurant-quality flavor with performance-driven nutrition. Bottom line: fine-dining rigor, zero pretense—just unforgettable food.

13. 80-20 Fitness
Organic • Gluten-free • Soy-free
80/20 Fitness offers chef-crafted, high-protein meal prep focused on flavor and fitness. Meals are macro-balanced, made with premium ingredients, and delivered across Southern California. Options range from ribeye with twice-baked potatoes to overnight oats and vegan pesto pasta. Weekly rotating menus support a variety of lifestyles, from clean bulking to low-carb cutting.

14. Black Market Meal Prep
4.7 (121)
Customizable • Gluten-free options • Macro-friendly
Black Market Meal Prep is a chef-inspired service offering fully customizable meals, available for same-day pickup or delivery seven days a week. The menu includes build-your-own options, smoothies, and snacks.

15. Catered Fit
4.6 (194)
Classic • Paleo • Keto • Vegetarian • Vegan
Catered Fit delivers fresh, chef-cooked meals daily with mix-and-match menus including Classic, Paleo, Meatless, and Keto. Up to 27 different dishes are offered each day.

16. My Healthy Penguin
4.8 (48)
Balanced • Macro-Friendly • High-Protein • Low-Carb • Family-Friendly
My Healthy Penguin delivers a new weekly menu of macro-friendly meals every Sunday across Los Angeles. Portion-controlled comfort foods help busy customers eat healthy without cooking.

17. B Nutritious
4.6 (92)
Customizable • Vegan-friendly • Healthy
B Nutritious offers freshly prepared, customizable meals with multiple plan sizes and dietary options, including vegan meals. Customers can choose weekly pickup or delivery to make healthy eating simple.

18. Z.E.N. Foods
4.8 (23)
Weight-Loss • Paleo • Keto • Gluten-Free • Low-Carb
Z.E.N. Foods (Zero Effort Nutrition) provides premium healthy meal delivery across Los Angeles. Calorie-controlled and specialty plans like Paleo and Keto are delivered daily in temperature-controlled bags.

19. MacroFit Meals
4.5 (119)
Balanced • High-Protein • Low-Carb • Whole Foods • Affordable
MacroFit Meals uses macronutrient science to create balanced, flavorful meal plans at an affordable price. Portion-controlled meals emphasize whole foods and quality ingredients.

20. Muscle Up Meals
5.0 (7)
High-Protein • Low-Carb • Keto • Balanced • Gluten-Free
Muscle Up Meals targets fitness enthusiasts with high-protein, low-carb meals ideal for athletes and bodybuilders. Chef-prepared, macro-balanced dishes are delivered throughout Los Angeles.
Top Meal Prep Services in Diamond Bar – FAQ
How did Prepared pick the top meal prep services in Diamond Bar?
We grade chefs on customer reviews, nutrition accuracy, delivery reliability, and price per gram of protein. Miss any mark and they stay off the list.
How much does meal prep delivery cost in Diamond Bar?
Expect nine to fifteen dollars per meal plus a flat five to seven dollar delivery fee. Bulk plans drop the price, single orders sit at the higher end.
Which diets do these services support?
Keto, high protein, gluten free, paleo, vegan, and low FODMAP are all available. Filter menus to see exact macros.
Do these chefs deliver to my neighborhood?
Yes. Every chef here delivers across greater Diamond Bar. Enter your address at checkout to confirm availability.
How far in advance should I order?
Order by Thursday at six PM for Sunday drop off. Miss the cutoff and the next delivery is a week away.
Are the meals fresh or frozen?
Meals are cooked fresh, chilled, vacuum sealed, never frozen, and stay good in the fridge four to five days.
Can I gift a subscription to a friend?
Absolutely. At checkout just enter their delivery address and your billing details.
What payment methods are accepted?
Prepared accepts Visa, MasterCard, Amex, Discover, Apple Pay and Google Pay.